SLIK Quick Release Plate for the AF2100 Pistol Grip Head, Black (618-734) Replacement 1/4 20 thread QR plate for the AF 2100 Trigger ball head and the 212AF head All metal plate includes the industry standard 1/4 20 threaded screw for mounting to film and digital cameras Durable cork pad creates a solid slip free connection between the plate and camera to prevent camera drift The plate also uses a tool free mounting design so you do not need a coin or screwdriver to securely attach the plate to your camera