The ConnectR-2 (CR-2) is BlackRapid"s patented design, and is standard issue on all R-Strap systems. It"s strong, swivels smoothly, and locks to ensure the safety of your camera and your peace of mind. The CR-2 will slide your camera smoothly up the strap for that legendary BlackRapid speed. The ConnectR-2 is designed to work with the matching R-Strap and FastenR-3 for a complete, secure camera strap system that"s fast and easy to use.