Proper retraction force is essential for flashlight applications … Too much force for heavy lights and Cameras will fatigue the user. The Locking Mechanism is designed for securing light on land … when diving, unlock unit and the moderate 12 oz retraction force will easily secure a flashlight or camera. The Plastic Snap clip is durable and easily attaches to BCD D-rings. Also includes Mounting bracket for attaching to BCD straps and weight belts. The Quick Connect (QC-II) allows easy connection/disconnection of flashlight. Deluxe Retractor includes both a QC-II male with Split ring and QC-II male with 6″ lanyard.