The Snow Melting Mats for Roof Valley Walkways are outdoor electric heated mats designed to melt snow and ice accumulation in roof valley walkways. The mats are 15 inches wide and 8 feet long, providing a sufficient size to cover most roof valley walkways. With a product dimensions of 96 x 15 x 0.1 inches and weighing 6.1 pounds, these mats are lightweight and easy to install and maintain. Keep your roof valley walkways clear and safe with these convenient and efficient snow melting mats.