Features: Easy to maintain: Snow melting mats have holes in the corners for fastening. You can nail the mat to steps, doors or sidewalks with little maintenance. Excellent weather resistance: The rubber snow melting mat is durable and safe, not afraid of rain and snow, and can be applied normally in bad outdoor weather. You can safely put them where you need to melt snow to reduce the trouble of snow accumulation. Specifications: Material: Rubber Size: 20 x 30 inches Package includes: 2 x Heated snow melting mat Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Winding risk may exist, please keep our product away from children. Winding risk may exist, please keep our product away from children.