Recommended for box drawer or pedestal file drawers up to 18" wide. 1-13/16" height; clearance required 1/2" plus 1/32" minus 0 each side. 32mm hole pattern with direct access mounting. Lever disconnect for easy drawer removal. Ball retainer latch and ramps, for easy drawer insertion. Drawer adjustment without removal. Flexible mounting tabs self-adjust to side clearance. Metal ball retainer holds 3 bearings per inch of race for smooth and quiet motion. Polymer stop cushions. Non-handed. Includes screwsand installation instructions in each polybagged set.