Secure Step Recycled Rubber Black Indoor/Outdoor Stair Tread Rug in the Mats department at Lowes.com
Indoor and Outdoor Carpet Stair Treads – Non-Slip Rubber Stair Tread Mats – Stairway Carpet Rugs Anti Slip for Pets, Dogs –Durable and Resistant - 32 x 8 inch – Grey Set of 14 - Amazon.com
Azteca Indoor Outdoor Stair Treads
Amazon.com: Yesland 4 Pack Rubber Stair Treads - 29.5 x 10 Inch Outdoor Stair Treads with Scroll Pattern Design Black Outdoor Step Mats - Anti Slip Tread Mat for Stairs : Tools & Home Improvement
ToStair Non Slip Outdoor Stair Treads,6"x24"(12-Pack),Black Pre-Cut 80 Grit Anti Slip Grip Tape,Non Skid Heavy Duty Traction Adhesive Step Stripes for Staircase,Skateborad and Deck.: Amazon.com: Tools & Home Improvement
Rubber-Cal Coin-Grip Commercial 10 in. x 36 in. Rubber Step Mat (6-Pack) 10-104-012-6pk - The Home Depot