Safe Way Traction 6" x 15' Roll Black 80 Grit Anti Slip Tape Non Skid Abrasive Safety Tape 3100-6-15 High Traction Surface and Aggressive Adhesive System Durable Abrasive Grit and Water Resistance Water-Proof Construction 80-Grit Anti-Slip Surface - Long Term Weatherability Apply to smooth surfaces and avoid all grout lines.