HeatTrak HTM24-10 Industrial Snow-Melting Walkway Mat, 24-Inch by 10-Foot, 120 Volt (Discontinued by Manufacturer) 120-volt industrial snow-melting walkway mat; measures 24 inches wide by 10 feet long Built with reinforced SBR rubber and designed to be left outside for the entire winter season Melts 2 inches of snow per hour Grommet holes in each corner enables you to secure mat to the ground Includes 6-foot power unit; cannot be connected to other HeatTrak mats