The CCSTN is a medium caster set, provided in a quantity of two, designed to add mobility to equipment racks. It features 3.50-inch diameter grey composite wheels with a zinc-plated ball bearing pivot, and has an overall height of 4.88 inches. This set has a weight capacity of 250 lbs and uses a 1.75 x 3.00 inch mounting pattern. This specific model, CCSTN, does not include physical brakes. The set includes heavy-duty brackets and mounting hardware for outside mounting on 'Contempra', C2, and C3 series racks, but is not compatible with ganged frames.