Versatile Expansion Option: Equipped with an standard base plate and double 1 / 4 " & 3 / 8 " screw hole, seamlessly compatible for tripod heads and various monopods / tripods for professional and filming Quick and Effortless operate: a handed rotary knob enables fast clamping and release, ensuring smooth operate without delays in critical moments Wide Compatibility with Adjustable Clamping: Features bidirectional synchronous with a most opening of 7.3Cm, compatible for various and equipment size for versatile outdoor scenarios Secure AntiSlip Grip: Silicone pad and antislip screws ensures a firm hold without or slipping, providing stable during prolonged outdoor Durability and Lightweight Aluminum Construction: Made from aluminum with a hollow design, weighing only 419g for easy portability while maintaining shock resistance and rust durability