Features:

Loosing the knob you can quick release the rack;

You can adjust the rack to horizontal freely and fix the position with 2 pins;

2 1/2" clamp comes along with 5 rubber collars 2 3/8", 2 1/4", 2", 1 7/8", 1 3/4";

Holds 1 wakeboard & 1 kneeboard;

UV resist black coated.