

🦋 Flip Fearlessly, Train Like a Pro!
The GOOD WORKER Butterfly Knife Trainer is a premium 420C stainless steel balisong designed for safe, realistic flipping practice. Featuring a blunt, unsharpened blade and precision-tuned pivots, it offers smooth, balanced handling with reinforced hardware for durability. Its ergonomic, non-slip handles and adjustable tension make it ideal for beginners and experts alike seeking a reliable, injury-free training tool.


















| ASIN | B0BYP86GXG |
| Age Range (Description) | Adult |
| Best Sellers Rank | #16,272 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 | Butterfly |
| Brand | GOOD WORKER |
| Brand Name | GOOD WORKER |
| Color | 1. Black |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.4 4.4 out of 5 stars (579) |
| Date First Available | March 16, 2023 |
| Hand Orientation | Ambidextrous |
| Handle Material | Stainless Steel |
| Included Components | No |
| Item Dimensions LxWxH | 9.02 x 1.29 x 0.39 inches |
| Item Length | 9.06 Inches |
| Item Package Dimensions L x W x H | 5.55 x 1.61 x 0.75 inches |
| Item Weight | 133 Grams |
| Manufacturer | GOOD WORKER |
| Material | Stainless Steel |
| Model Name | K19B |
| Orientation | Adjustable |
| Package Weight | 0.14 Kilograms |
| Part Number | K19B |
| Product Care Instructions | Hand Wash Only |
| Recommended Uses For Product | Training |
| Reusability | Reusable |
| Set Name | Black |
| Shape | Butterfly |
| Special Feature | Lightweight |
| Style | Modern |
| Suggested Users | Unisex-Adult |
| Theme | Sport |
| 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 I’m really happy with it. It’s well-balanced and has a solid feel—surprisingly 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. I’ve dropped it more times than I can count, and it’s holding up really well—no 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 can’t 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!
M**C
Woukd recommend
Great quality, sturdy. The lock is really strong though and tough to locka nd unlock, however Imd rather it be harder to locka nd unlock than it be too easy
T**N
Screws come loose but otherwise good
It’s a good trainer other than screws coming loose every couple days
J**N
GOOD WORKEING
GOOD WORKER Butterfly Knife
D**A
Satisfied buyer
The knife meets my expectations.
R**N
You get what you pay for
If you like to swing this around a lot, the screws will start coming loose and you have to keep tightening them like every 10 mins after 2 weeks. Thats if you even have the right tools. If you don’t the screws will just fall out.
W**Y
Learn to play with knives without cutting yourself
My son picked this for Christmas and fiddled with it for months! Yay!
E**S
Ok for beginners
Good for beginning, but cannot do higher level tricks whatsoever.
Trustpilot
1 day ago
2 months ago