These kits are used to affix the blade securely to the pocket. Utilizing 2 screws holding together a top and bottom plate, and 2 clips that attach to the end of the tendons to secure them to the blade. Each kit is for a single pocket. If you buy SEAC Motus or BM-30 pockets, you must also purchase one of these kits per pocket. The pockets do not come with these kits included.