The Super Sprouter Digital Heat Mat Thermostat by Hawthorne Hydroponics LLC is a high-quality hydroponics accessory designed for optimal plant growth. This black digital thermostat includes a thermostat for precise temperature control. Made in the United States, this 8-inch tall, 4.5-inch long, and 3-inch wide heat mat ensures even heating for efficient propagation and cloning of plants in your garden or outdoor space. It is a must-have item for any hydroponics enthusiast looking to maintain ideal conditions for their plant growing setup.