Check the listing for details. 2 Pack Durable Waterproof Seedling Heat Mat Warm Hydroponic Heating Pad 10" X 20. Color: Black, Condition: New. Listed at 29.87 USD. Durable Waterproof Seedling Heat Mat Warm Hydroponic Heating Pad 10" X 20 [ 2 Pack] Made with heavy duty PVC material that is durable and anti-tear. 4-layer structure, internal insulated wire for enhanced safety. Whether you are starting your seeds early for the upcoming season or propagating your houseplants, you will need a suitable setting to sow your seeds and germinate them. Worry-free for overheating and heat retention. Best for germination, cloning and seeded small planters. Water Resistnat: Waterproofed against splashes and sprays. Reusable, foldable, easy cleaning, just rinse and wipe dry. ( DO NOT SUBMERGE ) Efficient: Runs on 20-watts, keeping a moderate temperature for your plants. · Made with heavy duty PVC material that is durable and tear. Complies with MET standards. · Multi-layer structure with built-in insulated wiring and PET film design follows strict MET standards. · 3.IP67 waterproof surface helps keep clean and functioning properly. · **Other Uses: Great for keeping kombucha warm or for small pets. Important Unboxing Instructions: The seedling heat mats came fold together, please lay them out flat and placed heavy books on top to flatten, 24 hrs later, plugged them in & wait. Specifications: 2 - Seedling heat mat Size:10'' x 20.75'' Weight:480g Power: 20 watts