The Best Nekid Cow Tactical Butterfly Knife Bottle Opener Flip Action Practice Trainer BLACK COMBO [Bundle Pack 2 pcs] - Stainless Steel Black Coated High-End Heavy Duty Action - Large 8.75" - Gift These are the best butterfly tactical training devices / tools - COMBO 2 pieces Diamond Clutch quality - Black coated stainless steel FOLDING Flipping action with strong sturdy clasp - Open = 8.75" Packaged in the USA by The Nekid Cow Satisfaction Assured!