Description: How to Use:1 -Release screw anticlockwise, pull out safe pin and hold it, quick release platform can be taken out.2- Press quick release platform, turn screw clockwise for locking. Features:Quick release plates attach to the tripod mount on your camera and allow you to quickly and easily attach and detach your camera from a compatible tripod head. Quick release plate for DSLR & DC. With removable 1/4"-3/8" screw adapter.and with 1/4 ” screw hole. It has two locking device, very easy installation and removal of. Specification: Product Name: Quick Release Plate Material: Metal Shape: Round Screw Mount: 1/4 inch thread Height: approx. 1.3cm / 0.51 inch Diameter: approx. 5cm / 1.97 inch Color: Black+Gold Package Includes: 1 Piece Quick Release Plate