Check the listing for details. PROPAGATE PRO Seedling Heat Mat 48"x20" Seed Starter Pad Germination Clone 4'. Condition: New. Listed at 49.97 USD. Propagate-Pro Windowsill propagation heating pad - seed warming mat - is THE PERFECT CHOICE for indoor plant growing! Many gardeners enjoy starting garden plants early in the spring with the assistance of a plant warmer. Our plant heating pad is a heated electric seed propagation mat that gives gardeners proper environmental control for delicate seedlings. Our seedling heating mat uses CONSISTENT RADIANT HEAT for quick propagation of seedlings. Temperatures in the soil of indoor plants can be as much as 5-8°F lower than indoor air temperatures. The Propagation-Pro Heating Pad makes a perfect warm germination station for indoor growing. EASY TO USE! Simply place the Seedling Heat Mat on a flat, dry surface under a seedling tray or Herb Garden Box and plug the cord into a 120 V outlet. For best results when first starting, use a propagation dome over or plastic wrap over the seedling tray and keep it near a good light source. MULTIPLE USES: +Herb Garden +Propagation +Seedling Starting +Cuttings +Kombucha/Kimchi & Natural Fermentation Plus with our No-B.S. Guarantee you don't have any reason not to Add This To Your Cart! and Start your seeds & herbs off right!