UNSHARPENED ITEM:This butterfly trainer is useful for learning how to use the real thing without all the cuts and bruising to the hands. The unsharpenedof our practice butterfly Trainer will keep you away from danger as a beginner. DURABLE:Unlike the normal butterfly trainer, we use enhanced 404 stainless steel and enhanced screws to make sure it can last long till you get the hang of it and are able to move on to the real thing. Safe:This Practice Butterfly Trainer isfor learning how to use the real thing with out all the cuts and bruising to the hands.Flip with fun: The trainer is so easy to use and provides hours of safe flipping fun. Choice:Dull butterfly Trainer is the good choice for Intermediate users. Erganomic, highly polished handle. Suitable for a variety of fancy action.This is a good product if you are a butterfly Trainer lover.