Stairs and Steps: Anti-Slip Products- Safety Step International
Amazon.com: LifeGrip Anti Slip Traction Treads with Glow in Dark Stripe (10-Pack), 4" X 28", Best Grip Tape Grit Non Slip, Outdoor Non Skid Tape, High Traction Friction Abrasive Adhesive for Stairs
ComposiGrip 48 in. Black Composite Anti-Slip Stair Tread Step Cover 01147C - The Home Depot