Includes retention strap, sheath button post, and screw assembly. For use on Izula and Imlay sheaths. The strap is designed to be used on the Izula/Imlay knife only, not on knives with handle. If used on the Izula-II, then the handle must be removed. Please note that the strap will be considerably tighter on an Izula-II due to the extra handle length of the Izula-II. Bulk packed.