The Honeywell CG512A1009/C Clear Plastic Thermostat Guard is a white rectangular-shaped thermostat guard made of plastic, with dimensions of 5-5/8 inches in height, 8-5/8 inches in width, and 4 inches in depth. It is designed for Honeywell thermostats and is compatible with both corded electric power sources and various smart home systems like Ring. The guard is durable and lightweight, with a weight of 3.4 pounds, and is ideal for protecting and controlling your thermostat settings efficiently.