---
product_id: 23962331
title: "Bento Box Adult, Stackable Lunch Box, 40 oz, Symph Onyx | BPA-free, leakproof and microwave-safe with 2 compartments, utensils, chopsticks, divider and sauce cup for men and women."
brand: "bentoheaven"
price: "S$75"
currency: SGD
in_stock: true
reviews_count: 13
category: "Bentoheaven"
url: https://www.desertcart.sg/products/23962331-bento-box-adult-stackable-lunch-box-40-oz-symph-onyx
store_origin: SG
region: Singapore
---

# 100% leakproof silicone seal 40 oz capacity - meal-sized fuel BPA-free, microwave & dishwasher safe Bento Box Adult, Stackable Lunch Box, 40 oz, Symph Onyx | BPA-free, leakproof and microwave-safe with 2 compartments, utensils, chopsticks, divider and sauce cup for men and women.

**Brand:** bentoheaven
**Price:** S$75
**Availability:** ✅ In Stock

## Summary

> 🍱 Elevate your lunch game with Bentoheaven — where style meets spillproof convenience!

## Quick Answers

- **What is this?** Bento Box Adult, Stackable Lunch Box, 40 oz, Symph Onyx | BPA-free, leakproof and microwave-safe with 2 compartments, utensils, chopsticks, divider and sauce cup for men and women. by bentoheaven
- **How much does it cost?** S$75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/23962331-bento-box-adult-stackable-lunch-box-40-oz-symph-onyx)

## Best For

- bentoheaven enthusiasts

## Why This Product

- Trusted bentoheaven brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eat Well, Do Good:** Every purchase supports Feeding America, turning your lunch into a meal for those in need.
- • **Ready for Every Meal:** Microwave and dishwasher safe materials make reheating and cleanup effortless for busy lifestyles.
- • **All-in-One Dining Kit:** Includes chopsticks, fork, spoon, knife, and dip container—everything you need to eat on the go.
- • **Zero Spill Confidence:** Premium silicone seals and air vent plug guarantee leakproof lunches without the hassle.
- • **Stack & Pack Like a Pro:** Two stackable compartments with a smart divider keep your meals organized and fresh all day.

## Overview

The Bentoheaven Bento Box Adult in Symph Onyx offers a generous 40 oz capacity split into two stackable, leakproof compartments sealed with premium silicone lids featuring an air vent plug for easy opening. Crafted from 100% BPA-free, food-grade polypropylene, it’s microwave, dishwasher, and freezer safe. This all-in-one lunch solution includes a divider, sauce cup, and a full set of utensils including chopsticks, making it perfect for professional adults seeking a stylish, practical, and socially conscious meal carrier.

## Description

Shop Bentoheaven at the desertcart Storage & Organization store. Free Shipping on eligible items. Everyday low prices, save up to 50%.

Review: My husband doesn’t hate it so it’s a win - My husband surprisingly likes this and it has held up for the past like 10 months just fine. He uses it twice a week when he goes to his office to work and it A) holds enough food B) has never leaked and C) has a pretty good seal so his chips, etc doesn’t get stale if I pack it the night before. The only sign of wear and tear is that the brand name printed on the top lid has pretty much rubbed off which we’re not mad about lol. The divider is a nice touch, too. I wouldn’t pack straight up soup in it but we have definitely put wet items in (like pasta salad) and there was no spillage in the village. There have been times when I wish it was just SLIGHTLY deeper so that I could fit a sauce container (from a different brand) into it but that’s my own gripe. The product is great.
Review: Excellent bento, great portions, easy to clean and transport - I picked this up because twice now I’ve had a hinge snap on the lid of my previous bento boxes, and I wanted something without that point of failure. This is a great bento for the price, especially since it can go in the dishwasher! Most of the traditional boxes require hand washing, but this one does not. I’ve seen folks saying it’s small, but portion size across two containers is more than enough for an adult lunch. For reference, the bottle in the picnic table photo is 32oz, not a 16.9oz regular water bottle. It holds A LOT if you pack with care. I wouldn’t pack soup in it, but I’ve had no issues with saucy things. Silicone muffin cups fit inside it no problem if you need additional separation for foods. Lids still close just fine. The lids are inset, so you can’t pack foods that are taller than the boxes, but as long as everything fits neatly inside it, you’re good to go. There is room in the carry bag for a thin cold pack if you want to add extra chill to your box. The utensils are small, but functional. I’ve had no difficulty using them. Also love that this one comes with a set of chopsticks. The strap is just a piece of elastic that goes around both boxes, and all you have to do is slide it on. It’s a snug fit, but I recommend putting it in the carry bag for additional security anyway. I’ve had no problems putting it in my backpack and carrying it this way. Great box, easy to transport, no leak issues for me. I’m super happy with this.

## Features

- Your meals deserve a Premium Bento Box! It features 2 stackable compartments that hold 40 oz., 2 silicone sealed lids, divider, dip container, chopsticks, fork, spoon, knife, and a sealing strap.
- Leakproof Bento Lunch Box! The Bentoheaven lunch box’s strong silicone makes it 100% leak-proof, while remaining super easy to open due to the built-in air vent plug.
- Dishwasher and Microwave-safe Bento Lunch Box for Adults & Kids! Made with lab-tested 100% BPA-free and food-grade materials, keeping your lunch both fresh & safe.
- Recipe e-book inlcuded! To help you make the most out of your Japanese Lunch Box, you’ll get an e-book with 30 lunchbox recipes with healthy, nutritious meals.
- Purchase with a Purpose: Your purchase allows us to support Feeding America in helping the millions in this country who struggle to afford high-quality food.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Bentoheaven |
| Capacity | 40 fluid ounces |
| Closure Type | Snap |
| Color | Symph-Onyx |
| Container Shape | Rectangular |
| Item Dimensions L x W x H | 4.5"L x 4.3"W x 7.5"H |
| Material | Polypropylene |
| Material Feature | BPA Free, Dishwasher Safe, Freezer Safe, Microwave safe |
| Material Features | BPA Free, Dishwasher Safe, Freezer Safe, Microwave safe |
| Material Type | Polypropylene |
| Material Type Free | BPA Free |
| Other Special Features of the Product | Divider to separate food, Full set of cutlery and chopsticks, Microwave safe compartments, Sauce cup |
| Package Quantity | 1 |
| Product Dimensions | 4.5"L x 4.3"W x 7.5"H |

## Product Details

- **Brand:** Bentoheaven
- **Capacity:** 40 Fluid Ounces
- **Color:** Symph-Onyx
- **Material:** Polypropylene
- **Material Feature:** BPA Free, Dishwasher Safe, Freezer Safe, Microwave safe

## Images

![Bento Box Adult, Stackable Lunch Box, 40 oz, Symph Onyx | BPA-free, leakproof and microwave-safe with 2 compartments, utensils, chopsticks, divider and sauce cup for men and women. - Image 1](https://m.media-amazon.com/images/I/81gAderHHmL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Are the lids leak-proof?**
A: The lids are highly leak-resistant with silicone seals to prevent spills. However, for very liquid-heavy foods, we recommend keeping the box upright for added security.

**Q: Can the compartments hold larger meals like sandwiches?**
A: The compartments are ideal for standard meals but may be too shallow for oversized sandwiches. For larger items, consider slicing them to fit comfortably.

**Q: Is the bento box suitable for portion control?**
A: Yes, the bento box is designed for portion control, making it perfect for balanced meals. Its compact compartments help manage food portions effectively.

**Q: How durable are the materials used in the bento box?**
A: The bento box is made of high-quality, BPA-free materials, ensuring durability for daily use. It is dishwasher-safe and designed to last.

**Q: Does the box come with utensils, and are they practical?**
A: Yes, the box includes reusable utensils (fork, spoon, knife, and chopsticks) in a dedicated compartment. They are sturdy, easy to clean, and perfect for on-the-go meals.

## Customer Reviews

### ⭐⭐⭐⭐⭐ My husband doesn’t hate it so it’s a win
*by K***N on June 23, 2026*

My husband surprisingly likes this and it has held up for the past like 10 months just fine. He uses it twice a week when he goes to his office to work and it A) holds enough food B) has never leaked and C) has a pretty good seal so his chips, etc doesn’t get stale if I pack it the night before. The only sign of wear and tear is that the brand name printed on the top lid has pretty much rubbed off which we’re not mad about lol. The divider is a nice touch, too. I wouldn’t pack straight up soup in it but we have definitely put wet items in (like pasta salad) and there was no spillage in the village. There have been times when I wish it was just SLIGHTLY deeper so that I could fit a sauce container (from a different brand) into it but that’s my own gripe. The product is great.

### ⭐⭐⭐⭐⭐ Excellent bento, great portions, easy to clean and transport
*by Z***Y on August 15, 2019*

I picked this up because twice now I’ve had a hinge snap on the lid of my previous bento boxes, and I wanted something without that point of failure. This is a great bento for the price, especially since it can go in the dishwasher! Most of the traditional boxes require hand washing, but this one does not. I’ve seen folks saying it’s small, but portion size across two containers is more than enough for an adult lunch. For reference, the bottle in the picnic table photo is 32oz, not a 16.9oz regular water bottle. It holds A LOT if you pack with care. I wouldn’t pack soup in it, but I’ve had no issues with saucy things. Silicone muffin cups fit inside it no problem if you need additional separation for foods. Lids still close just fine. The lids are inset, so you can’t pack foods that are taller than the boxes, but as long as everything fits neatly inside it, you’re good to go. There is room in the carry bag for a thin cold pack if you want to add extra chill to your box. The utensils are small, but functional. I’ve had no difficulty using them. Also love that this one comes with a set of chopsticks. The strap is just a piece of elastic that goes around both boxes, and all you have to do is slide it on. It’s a snug fit, but I recommend putting it in the carry bag for additional security anyway. I’ve had no problems putting it in my backpack and carrying it this way. Great box, easy to transport, no leak issues for me. I’m super happy with this.

### ⭐⭐⭐⭐ Great lunch box
*by M***S on August 8, 2026*

Nice set and attractive. It’s a little smaller than I expected but easily holds enough for my lunch. Fine in the microwave, easy to clean. I think it will last a long time.

## Frequently Bought Together

- Bentoheaven Premium Bento Box Adult Lunch Box with Compartments for Women & Men, Set of Utensil & Chopsticks & Dip Container, Cute Japanese Kids Bento Lunch Box, Microwavable (Symph Onyx)
- Bentoheaven Insulated Lunch Tote for Work - Durable Materials, Variable Strap/Handle, Wide Opening - Cooler Lunch Bag for Women & Men - Fits all major Bento Lunch Boxes and Other Containers (Gray)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-09-01*