KV8450 Soft Close Side Mount Drawer Slide 20" The soft close feature brings the drawer box to a smooth, quiet, secure close Load Rating: 90# Steel ball bearing. (Three bearings per inch of race.) Side Clearance: 1/2" + 1/32" - 0 (Screws Included) Mounting: Side for frame and frameless Side Height: 1-13/16" 20" Slide with 20" of travel