Rubber-Cal "Coin-Grip Non-Slip Rubber Tread Stair Mats (6 Pack), Black Step mats are easy to clean with the use of simple soap and water, "Coin-Grip" Step Mats- 3/16" thick x 9-3/4" x 29-3/4" Rubber protects sensitive surfaces such as wood from physical damage Resists damage from outdoor elemental factors such as sunlight, rain, and snow Designed to reduce the chances of slip-and-fall accidents occurring on your stairways Rubber stair treads add traction, safety and update the aesthetics of your stair