The Super Clamp has a maximum opening of 50mm. Equipped with a non-slip rubber pad for a firm grip. Features a T-handle for easy locking or removal. Includes a release adapter for V-lock. Offers a simple push or pull lever release. Fits directly onto your camera battery. The universal V-lock release adapter is designed to fit directly onto your V-lock battery. It features a push or pull lever release, allowing you to quickly attach or detach your camera battery, along with a safety hook to prevent accidental release. It comes with 1/4-inch-20 mounts on the back, through which this V-lock adapter can be securely attached. The jaws of the Super Clamp open up to 50mm. It can be widely used for DSLRs, cameras, light stands, rods/poles, flashlights, hooks, shelves, crossbars, etc. It comes with a non-slip rubber pad that helps to attach the item more steadily and reduce scratches. Color: Black Material: Metal Package Contents: 1 x Super Crab Clamp Only the above package content is included; other products are not. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. The allowed measurement error is +/- 1-3 cm.