Male to Male Threaded Screw Adapter (1/4" to 3/8" (1-pack)) The adapter screw is designed with one end of 3/8, and the other end of 1/4; made of metal material, and silver plated surface Suitable for all kinds gears with 1/4 or 3/8 screw hole Widely used on camera accessories such as Tripod, Monopod, Ballhead, light stand, Video light, etc. Materiel: Metal Color: Silver Size: Approx. 15mm(diameter) x 20mm(height) Weight: 10g