Multi-function Double Ballhead is a multifunctional double ball head with a clamp at the bottom and a 1/4" screw on the top. | The film is non-slip and shockproof, stable shooting, no jitter | Ball sleeve structure, you can adjust various angles at will | With standard 1/4 inch screw, suitable for most cameras such as card digital camera, micro single camera, SLR camera, GoPro motion camera, CONTOUR motion camera, etc | 100% new quality, firm and stable, aluminum alloy arm