**compatible with Mk.2 RRS tripods (~late 2017 or newer) ONLY** The Really Right Stuff QD Strap Set includes a Quick Detach (QD) Collar, an Apex Mount, and an optional strap or swivels. The QD Collar attaches to the leg of a RRS tripod to create a mounting point for any push-button QD strap. The Apex Mount attaches to the bottom of the tripod apex (or side depending on series) in order to create a second mounting point. Attaching one side of the QD strap to the Leg Collar and the other to tripod Apex Mount creates a more versatile and secure tripod transportation experience. The strap option provides a 1-1/4" webbing and two push-button quick-detach sling swivels.