Compatible with tube size outer diameter is 0.66''-1.5'' (17-38mm);
Includes 1" universal rubber ball head, which can be rotated 360° to adjust the angle according to the needs of the mounts or tube;
Clamp base with ball made of high-strength composite and stainless steel,designed to quickly clamp to round, square, and irregular rails and bars in the most demanding environments;
Rubber pads provide stable gripping and protection of mounting surface,durable and non-slip without any problems of movement;
Ideal mounting base for phones, tablets, cameras, rod stands,etc..