There are 1/4 inch screw holes and a cold shoe base at the bottom for strong expandability. Compatible with cameras, fill lights, microphones and other equipment, strong compatibility. Fine workmanship , small and light, easy to carry and . Stable, , flexible and practical. Made of CNC machining, it is durable and not easy to even if you carry a heavy camera. Type: Hot shoe mount Interface: 1/4 screw Function: Expand photographic equipment material: metal color: Black Package Contents: 1 x Bracket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.