Features 1、Aluminum Alloy Material: Crafted from premium aluminum alloy, this quick release plate clamp is CNC machined and anodized for superior strength, durability, wear proof, and erosion resistance. It is built to withstand the rigors of professional photography. 2、Dual for Arca Design: The base and quick release plate are both compatible with the 38mm for Arca standard, allowing for compatibility with commonly used for Arca equipment on the market for wide adaptability. 3、3/8 to 1/4 Inch Thread: Featuring a standard 3/8 inch to 1/4 inch dual purpose thread, this clamp can be directly mounted on devices with a 1/4 inch thread, including tripod heads, ball heads, and other accessories. It offers versatility and convenience in mounting options. 4、Bubble Level: With 3 built in bubble levels, this quick release clamp allows for easy and accurate leveling in both horizontal and vertical shooting positions. You can effortlessly find the correct shooting direction for your desired composition. 5、Quick and Secure Clamp: The clamp has a length of 50mm and is compatible with quick release plates that are 33 to 38mm wide. It is equipped with a non slip knob for easy opening, closing, and locking, ensuring a secure plate attachment. Specification Item Type: Camera Quick Release Clamp Material: Aluminum Alloy Length: Approx. 50mm/2.0in Package List 1 x Camera Quick Release Clamp 1 x Wrench