(1) Hydrofarm Seedling Heat Mat 9" x 19.5" - 17w * Increases success of seedlings and cuttings * Warms root area 10-20˚F over ambient temperature to improve germination * The only UL Listed seedling heat mats on the market! * Note - Image is a default picture provided by Hydrofarm. Auction is ONLY for heat mat. Tray notincluded.