Skip the shovels with the HeatTrak HR10-30 Residential Snow-Melting Stair Mat. Sold individually, these HeatTrak stair mats are designed to be placed on your outdoor exposed steps during the winter time to melt snow and ice that has accumulated on those stairs. The mats plug into each other and ultimately into a standard US 120V outlet. These steps are ten inches wide by 30 inches long, providing ample coverage for any set of stairs that you may have. These mats are made of a plastic material and can melt up to two inches per hour of snow/ice accumulation. These mats can be used on any type of outdoor steps including concrete and wood steps.