The product is a standard 1/4 inch screw release plate that is widely used in SLR cameras, micro-single cameras, camera straps, tripods, selfie sticks, and other equipment. The package includes 2 release plates. The screw is compatible with all SLR cameras and mirrorless cameras with 1/4 inch screw holes. It is made of high-quality zinc alloy and has a smooth appearance with no metal chips or burrs. The screw gasket is designed to prevent screws from loosening. The product can withstand a load of up to 10kg and is safe for daily use. If there are any issues, customers can contact customer service for a solution.