1/4" Male Threaded to 1/4" Male Threaded Double Male Screw Adapter The adapter screw is designed with one end of 1/4, and the other end of 1/4; made of metal material, and silver plated surface Suitable for all kinds gears with 1/4 or 1/4 screw hole. Materiel: Metal Color:Sliver Size: 2cm x 1.5cm - 0.79inch x 0.59inch