This multi-purpose rail from Really Right Stuff is a versatile tool for photographers using Arca-Swiss compatible tripods. It is made of durable aluminum and comes with two 1/4"-20 mounting screws for secure attachment of your camera. The proprietary quick release type makes it easy to switch between your camera and other accessories. The black color adds a sleek and professional look to your setup. The MPR-113 model is an essential accessory for any camera enthusiast looking to improve their photography game.