This caster kit is comprised of four, non-locking, 2 5/8" Dia. casters, and two, easy-to-install, mounting/support brackets. This Model accommodates the 18.5" deep 100/200 Series cabinets. he heavy-duty, 14-gauge CRS mounting/support brackets are 4" wide and are designed to be affixed beneath the cabinet’s bottom panel for front-to-back reinforcement. Brackets are .075" thick and feature two 1/2" downward flange on the inner edge, which provides additional structural support to the cabinet bottom. The zinc-plated swivel casters, which have an overall height of 3.75", feature 2 5/8" hard rubber tread wheels. Supports a load capacity of up to 1000 lbs. Brackets and casters mount directly to cabinets using supplied hardware. When in place, increases the cabinet’s overall height by 1.75". Brackets are finished in black.