The Leofoto LHC-50 60mm Screw-Knob Clamp w/QR Plate LHC-50 is a high-quality clamp designed for Arca-type quick release systems. Measuring 60mm in width and weighing 93.5g, it features a screw-knob mechanism for secure and precise clamping. The included QR plate ensures compatibility with various Arca-type accessories. Made from durable aluminum, the LHC-50 is perfect for photographers and videographers seeking a reliable and easy-to-use clamp for their equipment. Leofoto LHC-50 60mm Screw-Knob Clamp w/QR Plate LHC-50