1、3/8in and 1/4 in Screw Hole: It is equipped with 1/4 inch and 3/8 inch screw holes, 1/4 inch and 3/8 inch conversion nuts, and can be connected to the tripod to connect the camera. 2、Compatible for Arca: The jaw of the quick release plate can be opened 38mm to 43mm, which is applicable for Arca standard bayonet. 3、Built in Bubble Level: The quick release plate is equipped with double level gauge, a precise scale and a bubble level gauge with a length of 110mm. It is very convenient to use. 4、Quick Release and Lock: In weight reduction design, camera tripod mount adapter plate has anti skid locking functions, quick loading and quick release, convenient to use and install. 5、Aluminum Alloy: This camera tripod quick release plate is made of aluminum alloy, which is durable, anti wear and anti corrosion. 1 x Quick Release Plate with Bubble Level Item Type: Quick Release PlateMaterial: Aluminum AlloyGross Weight: 200g / 7.1ozJaw Adjustable Width: 38-43mm / 1.5- 1.7inLength: 110mm / 4.3in