This is a heavy duty Explorer cordura nylon dagger/hunting knife sheath from circa 1990s. It fits a knife blade up to 1 1/8" wide x 5" long. The metal snap will only go around a thin handle just behind the guard, will need to be less than 3/8" thick, ideally 1/4" or even an integral design with no handle. Can possibly fit a thicker handled knife, but the snap will be tight depending on how thick it is. Has a hard plastic insert. Can be carried horizontally or vertically. This is unused vintage old stock found in a Seki, Japan knife warehouse.