Large profiles provide a strong structure to support whatever you are carrying Telescoping profiles let you adjust the height up or down by pressing the large button. Audible clicks confirm when you’re securely locked into position Pre-installed nut plate allows the loadbar to slide freely during installation and adjustment saving time Ratcheting wrench designed optimized to allow tightening to the required 15nm torque spec as well as clearing all the angles so there is no intereference making installation effortless Wide bases on each upright provide a solid rack to truck bed platform and perforations allow optimal fit of fit kit pads