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๐ค Flip like a pro, train like a legend.
The GOOD WORKER Black Practice Trainer is a premium 420C stainless steel balisong trainer featuring a 3.94" blade length and a secure spring latch lock. Weighing just 4.69 oz, it offers optimal balance and precision-tuned pivots for smooth flipping. Designed for beginners to experts, its reinforced build and adjustable pivot screws provide durability and customizable handling, making it the ultimate training tool and stylish fidget toy for enthusiasts and professionals alike.


























| ASIN | B0BYP86GXG |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #13,276 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1 in Martial Arts Ninja Weapons |
| Blade Length | 3.94 inches |
| Blade Material | Stainless Steel |
| Blade Shape | Straight Back |
| Blade Type | โ |
| Brand | GOOD WORKER |
| Brand Name | GOOD WORKER |
| Color | 1. Black |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.4 out of 5 stars 648 Reviews |
| Hand Orientation | Ambidextrous |
| Handle Material | Stainless Steel |
| Included Components | No |
| Item Length | 9.06 inches |
| Item Shape | โ |
| Item Weight | 4.69 ounces |
| Manufacturer | GOOD WORKER |
| Model Name | K19B |
| Model Number | K19B |
| Number of Items | 1 |
| Orientation | Adjustable |
| Part Number | K19B |
| Product Care Instructions | Hand Wash Only |
| Recommended Uses For Product | Training |
| Reusability | Reusable |
| Set Name | Black |
| Size | 3.9" |
| Special Feature | Lightweight |
| Special Features | Lightweight |
| Style | Modern |
| Theme | Sport |
| Unit Count | 1 Count |
| Warranty Description | no |
A**A
Great for beginners and smooth to flip
I got this trainer butterfly knife to safely learn tricks without worrying about cuts, and Iโm really happy with it. Itโs well-balanced and has a solid feelโsurprisingly sturdy for the price. The handles flip smoothly, and the weight makes it easy to practice without feeling too heavy or too light. The "blade" is blunt and safe, which is perfect for beginners (or parents of kids who are into this stuff). No sharp edges, but it still looks cool and gives a realistic feel. Iโve dropped it more times than I can count, and itโs holding up really wellโno loose screws or major damage. The latch works fine, though it can get in the way during tricks sometimes (nothing a rubber band or quick mod canโt fix). Great choice if you're just getting into flipping or want a safe way to practice without risking your fingers. Fun, durable, and definitely worth it. Great for kids too!
K**E
It was on time
It was good
W**.
A little tight
The I got one came a little tighter than the other two trainers I bought from the brand, but the weight is still consistent with this brand. I'll keep working it to loosen it up but overall I'm still satisfied.
J**Y
Screws come out and may be lost
Screw on the latch came out within 5 minutes of use. Was gonna return it but then I found it and out some loctite on them. Not a bad fix but this isnโt something I should have to deal with. Other than that, its a fine product. It has the correct weight to simulate a real butterfly knife.
W**.
Good starter.
Im new to flipping so I dont know the difference. But as for what it feels like to me, it feels like a real balisong. I like it and already learned 2 different flips with it. I got the fever now and actually woke up this morning and the first thing I did was pick it up and started flipping. Great for people who have anxiety. I recommend it for any beginners. Its a bit wobbly not sure how much is too much but wtvr.
S**.
Good for a newbie
This is a fun practice device, fit the hand well and is balanced.Well. but it did not hold up very well. The movement is smooth and the sound it makes is pleasant as you're training with it. It lasted just over a month or twenty to twenty five hours practice time, before it broke, I would have to say it's probably worth the money as an introduction. If you are focused on building skill or technique then buy an upgrade.
T**R
Safe and fun
Operates smoothly, and safe for the kids who want a knife but parents say no.
M**R
From squishies to Ninja Master!
My 10 year old graduated from squishies to become a full on butterfly knife twirling Ninja master!
Trustpilot
1 day ago
4 days ago