"Keep Area Clear" Anti Slip Adhesive Floor Sign By SmartSign | 6" x 24" DURABLE VINYL. Made from 18 mil thick non-skid vinyl with a pebbled finish. They last over 2 years outside. ANTI-SLIP. SlipSafe labels have textured surface that helps prevent slips and skids. EASY TO INSTALL. The vinyl label has an aggressive adhesive backing and can be used indoors and outdoors but is not suitable for textured floors. Just remove the liner and stick this to any smooth surface.