This is a Snap Button Set for Phrobis and Buck 188 M9 Bayonet Scabbard. Works on the bottom of the scabbard (near the stone), or the top (where the handguard strap snaps into). The snaps are from the same manufacturer, and are made the same as they were for the Phrobis bayonets in the late 1980's. Includes 2 screws and 2 of the snaps as pictured. The other image shows one of these installed on a Phrobis scabbard. Depending on the condition of your scabbard, these snaps can be "weathered" by lightly buffing to remove some of the black finish to expose the brass - giving the snaps a perfect match to a used scabbard.