OLIA DESIGN Oliasports Rainbow Practice Balisong Metal Butterfly Steel Trainer Dull Knife No offensive blade( we sure you can find the best price from here because we are the factory This butterfly training dull blade knife is perfect for learning how to Use the real thing with out No Loctite Required, just tighten the pivot screws until they stay in All of the products we sell are brand new, safe, from smoke-free environment and high quality This is a perfect one if you are a butterfly knives lover. You can practice without harmful