Knife, Otf Knife, Butterfly Knife manufacturer / supplier in China, offering 7 "DC53 Steel Cow Bone Pocket Knife High-Quality Outdoor Self-Defense Folding Knife, 10.2 "Tsunami Balisong Knives Trainer Stainless Steel Blade 7075 Aluminum Handle, 9.92" Squidtrainer V4 Balisong Trainer Unsharpened Stainless Steel Blade Butterfly Knives and so on.