Cold Steel Perfect Balance Thrower Sheath. Heavy black nylon construction. Made to fit CS80TPB Perfect Balance Thrower or other similar fixed blade knives with up to 9 blade. Bulk packed." Construction: Cor-Ex; Color: Black; Other Info: Heavy black Cor-Ex construction. Made to fit CS80TPB Perfect Balance Thrower or other similar fixed blade knives with up to 9" blade. Bulk packed.