This is a plastic platform that the condensing unit or heat pump in the yard sits on. Solidly manufactured of 3 inch UV resistant plastic. | pad size: 24x 36| rugged design provides uniform and generous ribbing for optimum, self-leveling ground support without inserts | lightweight and unaffected by UV or weather | texture to prevent unit sliding | classic appearance with rounded edges and concrete Gray color | drillable for securing unit - manufacturer: diversities.