[site removed] DSKCRNRSLV Clamp-On Steel Desk Corner Sleeve for L-Shaped/CornerPRODUCT DESCRIPTIONA steel desk corner sleeve that expands your L-shaped or corner desk workspace by adding a 25 by 13.1 inch keyboard and mouse platform. The knob-less clamp design fits desks between 0.5 and 1.5 inches thick without requiring drilling, and protective foam padding prevents surface damage. Made from powder-coated alloy steel for durability and stability while promoting ergonomic wrist positioning.UPC065030882330