TekSupply 103647 Seedling Heat Mat 48 in W x 20.75 in L Want faster&#44; healthier&#44; fuller seed germination The secrets in the mat Waterproof&#44; electric mat warms the root area 10-20 deg over ambient temperature. Complete instructions as well as helpful planting and lighting information are imprinted on the mat. Includes instructions and 6-foot power cord. Great Gift Idea.