Slip Guard Non-Slip Stair Tape - Indoor & Outdoor Waterproof Safety Steps, 4&rdquo; x 15" ft, 80 Grit, Black WATERPROOF TAPE: High weatherability - perfect floor protection from slippery conditions due to rain, snow and ice. INSIDE OUTSIDE: Non-slip tape for stairs, steps, parking lots, kitchens, sidewalks, slopes, and more. ROLL OUT: 4 x 15 foot roll offers adhesive for smaller stairs or commercial grade: 80 Grit providing superior grip. REDUCE SLIPS: Helping to improve walking stability on interior and exterior surfaces such as stairs, RV steps, boats, docks, ladders and more. CERTIFIED SAFETY: National Flooring Safety Institute (NFSI) certified for High Traction.