RC SLL Seedling Heat Mat 10" x 20.75",Waterproof Plant Hydroponic Heating Mat for Seed Starting,Plant Germination and Reptile with Power-Off Protection（4 Pack）EFFICIENT SEEDLING: The plant heating mat can provide stable and uniform heating in the temperature range of 20 30C (68F 86F), which will greatly improve the success rate of seedlings and cuttings very, suitable for seed starting and cuttings propagation. PREMIUM QUALITY MATERIAL: The heating pad is made of heavy duty PVC material, durable and tear resistant. The exterior of the plant mat is smooth and flat, waterproof and easy to wipe down; the built