--- product_id: 335665492 title: "Brain Teaser Puzzle 3D Unlock Interlocking Puzzle Metal Hole Lock Adult Educational Toy IQ Puzzle (Lock Metal Puzzle)" brand: "ginfh" price: "S$15" currency: SGD in_stock: true reviews_count: 9 category: "Ginfh" url: https://www.desertcart.sg/products/335665492-brain-teaser-puzzle-3d-unlock-interlocking-puzzle-metal-hole-lock store_origin: SG region: Singapore --- # Intricate double-groove lock mechanism Boosts logic & hand-eye coordination Durable zinc alloy metal build Brain Teaser Puzzle 3D Unlock Interlocking Puzzle Metal Hole Lock Adult Educational Toy IQ Puzzle (Lock Metal Puzzle) **Brand:** ginfh **Price:** S$15 **Availability:** ✅ In Stock ## Summary > 🔓 Unlock brilliance, one twist at a time! ## Quick Answers - **What is this?** Brain Teaser Puzzle 3D Unlock Interlocking Puzzle Metal Hole Lock Adult Educational Toy IQ Puzzle (Lock Metal Puzzle) by ginfh - **How much does it cost?** S$15 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/335665492-brain-teaser-puzzle-3d-unlock-interlocking-puzzle-metal-hole-lock) ## Best For - ginfh enthusiasts ## Why This Product - Trusted ginfh brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Portable Puzzle Power:** Compact and lightweight, perfect for on-the-go mental breaks or sparking conversation at your next gathering. - • **Screen-Free Focus Booster:** Ditch digital distractions—engage in a tactile, hands-on brain workout that enhances concentration and patience. - • **Stress Relief Meets Smart Fun:** Relieve tension while training your brain—ideal for professionals seeking mindful downtime or unique party entertainment. - • **Unlock Your Mind’s Potential:** Challenge your logic with a sleek, intricate lock puzzle designed to sharpen focus and creativity. - • **Built to Last, Crafted to Impress:** Premium zinc alloy construction ensures years of smooth, satisfying gameplay without wear or sharp edges. ## Overview The Brain Teaser Puzzle 3D Unlock Interlocking Puzzle is a compact, zinc alloy metal lock puzzle designed for adults to enhance logical thinking, hand-eye coordination, and concentration. Featuring a unique double-groove mechanism, it offers a tactile, screen-free challenge that doubles as a stress-relieving fidget toy. Portable and durable, it’s perfect for mindful breaks, party games, or educational fun. ## Description Test logic and creative minds with this cool yet simple brain teaser. These brain games are perfect for passing time, fidgeting, and avoiding gadgets and electronics. They’re a healthier way to practice focus and concentration. Can also be used for fun party games. Notice: The brass lock puzzle is packaged in a flannel bag without an instruction manual. It is a test of the fun of exploring and trying to open. Steps to Unlock the "Divine Lock" Fidget Toy: Observe the Lock Body: First, locate the movable lock core on the main body. Gently push the lock core up and down to feel its range of motion. Find the Keyhole: Push the lock core all the way up. At this point, a small hole will be exposed on the lock body. Important: Do not insert the key or any tool into the hole at this step. Rotate the Lock Core: While keeping the lock core pushed up, rotate it by a certain angle until the small hole that was visible is now hidden from view. Pull to Unlock: Once the hole is hidden, simply pull the lock core outward, and the lock will open. Key Notes: The key that may come with the toy is often not used for prying or turning in the standard solution. The core operation involves the sequence of pushing, rotating, and pulling the lock core. Avoid using excessive force. If the lock doesn't open, reset the core and ensure each step is performed correctly, especially achieving the correct angle when rotating the core to hide the hole. Understanding the principle can be helpful: the secret likely lies in an internal double-groove structure. Pushing the core up aligns a mechanism, while rotating it disengages the internal mortise and tenon connection Review: Excellent - As expected. Solid copper construction. Movement is smooth. Review: Great for kids! - Went to visit my grandkids (age 8 to 15). They get bored quickly with everything so decided to try some puzzles. These were great. Kept them occupied for hours. Thanks. ## Features - Brain Games Puzzle Fidget The brain teaser toys help train eye and hand coordination skills - made of thick and zinc alloy material, which can keep the shape of the puzzle intact, can be used for many years, non-toxic material, absolutely no sharp cut edges - The brain games are perfect for passing time, fidgeting, and avoiding gadgets and electronics. They’re a healthier way to practice focus and concentration. Test logic and creative minds with this cool yet simple brain teaser. - IF you are not completely satisfied with your Toy,simply let us know and we'll give you a satisfactory solution. For a risk-free purchase click "Add to cart" - Test logic and creative minds with this cool yet simple brain teaser. These brain games are perfect for passing time, fidgeting, and avoiding gadgets and electronics. They’re a healthier way to practice focus and concentration. Can also be used for fun party games. - The brain teaser puzzle offers you a game that combines learning with entertainment. The process of completing the puzzle not only brings you fun and releases stress, but also cultivates your logical thinking. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B091B7TR4X | | Additional Features | Portable | | Age Range Description | Adult | | Best Sellers Rank | #98,945 in Toys & Games ( See Top 100 in Toys & Games ) #193 in Assembly & Disentanglement Puzzles | | Brand Name | GINFH | | Customer Package Type | Not Flat Free Packaged | | Customer Reviews | 4.3 4.3 out of 5 stars (120) | | Educational Objective | Concentration Skill, Hand, Logical Thinking | | Included Components | Brass Lock Puzzle | | Is Assembly Required | No | | Item Shape | Lock | | Item Weight | 0.09 Kilograms | | Manufacturer | Kingfh | | Manufacturer Minimum Age (MONTHS) | 6.00 | | Material Type | Zinc | | Material Type Free | Metal Only | | Number of Items | 1 | | Number of Pieces | 1 | | Number of Players | 1 | | Operation Mode | manual | | Play Activity Location | Tabletop | | Power Source | manual | | Product Style | Lock Metal Puzzle | | Puzzle Type | Lock | | Size | Compact | | Skill Level | All | | Theme | Castle | | UPC | 738260352071 | | Unit Count | 1.0 Count | ## Images ![Brain Teaser Puzzle 3D Unlock Interlocking Puzzle Metal Hole Lock Adult Educational Toy IQ Puzzle (Lock Metal Puzzle) - Image 1](https://m.media-amazon.com/images/I/41yIAuXMJlL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent *by A***S on April 7, 2025* As expected. Solid copper construction. Movement is smooth. ### ⭐⭐⭐⭐⭐ Great for kids! *by A***S on December 15, 2024* Went to visit my grandkids (age 8 to 15). They get bored quickly with everything so decided to try some puzzles. These were great. Kept them occupied for hours. Thanks. ### ⭐⭐⭐⭐⭐ Really cool puzzle *by T***T on February 6, 2024* But my son cracked it in less than 10 mins! I love that they can keep solving it over and over. Though we know how it’s done now, we race to see who was fastest in solving ## Frequently Bought Together - GINFH Brain Teaser 3D Unlock Interlocking Puzzle Metal Hole Lock Adult Educational Toy IQ Puzzle - BePuzzled | Padlock Hanayama Metal Brainteaser Puzzle Mensa Rated Level 5, for Ages 12 and Up - BePuzzled | Infinity Hanayama Metal Brainteaser Puzzle Mensa Rated Level 6, for Ages 12 and Up --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sg/products/335665492-brain-teaser-puzzle-3d-unlock-interlocking-puzzle-metal-hole-lock](https://www.desertcart.sg/products/335665492-brain-teaser-puzzle-3d-unlock-interlocking-puzzle-metal-hole-lock) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-04-24*