The Vivosun 20 x 20.75 inch Durable Waterproof Seedling Heat Mat is a high-quality seed starter accessory designed for home and garden enthusiasts. This heat mat provides consistent warmth to aid in seed germination and root development, ensuring a successful start to your garden or hydroponics setup. Its waterproof feature allows for easy cleaning and maintenance, making it a practical addition to your propagation and cloning equipment collection. With a 90-day return policy, you can trust in the quality and durability of this heat mat for your seedling needs.

Used one season before deciding seedlings weren't for me. Works great nothing wrong with the mat, only the gardener.