Item Type: Camera Quick Release Clamp Weight: 200g/7.1oz Material: Aluminum alloy Applicable Quick Loading Plate: Standard quick loading plate with width of 38mm-43mm Package List 1 x Quick Release Clamp 1Multiple 1/4 inch and 3/8 inch Screw Holes: With various screw holes and included conversion nuts, this base can be attached to a tripod to connect your camera securely. 2Clamp Opening from 38mm to 43mm: The clamp can accommodate any standard for Arca Swiss compatible quick release plate, ensuring versatility in camera compatibility. 3Dual Bubble Levels and Accuracy Scale: Equipped with dual bubble levels and a accurate scale, measuring at 110mm, this base offers convenient and accurate leveling capability. 4Lightweight Design with Anti Slip Locking Function: Designed to reduce weight and improve portability, this quick release base also features a secure locking mechanism to prevent accidental slips. 5Durable and Sturdy Aluminum Alloy Construction: Made from high garde aluminum alloy, this base is built to withstand wear and tear, providing long lasting reliability for your camera setup.