1Compliant with: Quick release plate suitable for AS specifications, for RRS, for KIRK, for Wembley, for MARKINS, for SUNWAYFOTO, etc. 2Knob Operation: Quick release plate is convenient to adjust the width of the plate, which can be more convenient to connect your head, bracket, tripod and other accessories. 3Embedded Level: Quick release plate clamp includes an embedded level for accurate leveling of your camera, which can provide perfect and stable photoing every time. 4Position Slot: Equipped with 1/4 inch turn 3/8 inch screw, bottom with position slot and mounting screw hole, which can prevent your camera from falling accidentally. 5Aluminum Alloy: The use of all aluminum alloy material CNC fine processing, the overall quick release plate is sturdy and firm, which can better feel and more impact resistance. 1 x Quick Release Plate Base