This double 1/4" screw clamp with 17mm metal ball head 48mm grip thickness, 360 degree rotation, and universally compatibility for phone/tablet holders, and tripods Featuring metal construction, adjustable tilt angles, and two 1/4" female screw holes for seamless attachment to photography gear, mic stands, and action cameras Ideal for content creators, live streamers, and driver needing flexible mounting solution for smartphones, tablets, or navigation devices on desks, tripods, or car dashboards Perfect for stabilizing rings lights during makeup , securing tablets for recipe streaming, or mounting action cameras on uneven surfaces in outdoor adventures Its compact 17mm ball head joint ensures fast swap compatibility with most camera accessories, while the reinforced clamp base prevents slippage on surfaces up to 48mm thick