Aluminium alloy processing, small and light weight, appearance product net weight is only 12 g Top bead limit (safety screw) to prevent cold shoe accessories from falling off The cold shoe mounting adapter can be used for microphone, fill light, camera and DSLR rig, cage, cheese plate, etc Anti-reverse positioning pin for 2 x 1/4 inch screw holes with a hole spacing of 9 mm There are 3 anti-reverse positioning pin screw holes with a hole spacing of 9 mm around the 1/4 screw. After installing the positioning pin, can be used for 2 x 1/4 screw holes with a hole spacing of 9 mm to prevent reverse rotation and prevent the equipment from loosening and the devices from falling off