Goof Proof Corner Shelf and Footrest is a strong, stay in place, molded plastic form to add a shelf into any 90 degree vertical corner. The 14" uncut Corner Shelf has guidelines on the top surface for cutting the shelf to the optional 10" Footrest size as a leg shaving support. Designed to be installed onto finished walls, then covered with any solid surface material or tile. Built-in slope on the top surface ensures proper water run-off in showers. Additionally, the underside of the Corner Shelf may be filled with modified thinset mortar when choosing to tile the bottom also. Comes complete with easy to read, illustrated installation instructions with anchors, screws and shims for out of square corners. 100 lb weight limit.