YingIron Stainless Steel Folding Unsharpened Blade Butterfly Training Knife This Butterfly Training Knife is perfect for practicing and refining your butterfly, balisong skills without all the cuts and bruising to your hands. These knives are for training or collection purpose only. They are legal everywhere because they are not considered as weapons. The perfect cool gift for your beloved, children, friends, etc. *About trainer: Butterfly Trainers are divided into two types according different structures: screw structure (this listing) and riveted structure. It is well known that the screw blade of the screw structure will become loose during the process of playing, which is not a problem of quality, so please do not give negative comments because of the screw loose. Thanks!  Riveted structure will also become screw loosing when playing, but it's not repairable. *How to solve the problem of screw loosening to make the butterfly blade live longer: After playing for a period of time, the screw will be loose naturally, make sure to maintain and tighten the screws: take down the screw and glue it, and then put back, it will not be easy to loose later. We focus on supplying all kinds of high quality, stylish and attractive items to help improve customers' high quality life, devotes to improving customers' on-line shopping experience. Thank you for supporting and purchasing. Please do not hesitate to contact us if you have any questions. Specification:  Overall length: 23.5cm  Blade(Dull) Length: 11.5cm  Handle Length: 13.2cm  Hardness: 55HRC Net Weight: 208g  Material:44C Stainless Steel  Packaging:  1* Butterfly Training Knife 1*Screwdriver 4* Screws 1*Small Bag 1*Bbox
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