1/4'' standard screw is compatible with a variety of products on the market, such as SLR, mirrorless camera, mobile phone, projector and so on. Made of aluminium alloy material, with sandblasting electrophoresis treatment, more durable, anti-corrosion and longer life. 5kg maximum load bearing, non-slip rubber foot pad, more safe to use. 4 level adjustable height, which is more functional. The folding length is only 18cm/7.1in, make it more convenient to carry.