Emerson F61-2663 Wall Plate for Sensi Wi-Fi Programmable Thermostat, White Designed exclusively for Sensi Wi-Fi thermostat (only models ST55 and 1F87U-42WF) It doesnt fit Sensi Touch Wi-Fi thermostat models ST75 & ST75W Covers most marks, holes or any other issues left behind by other thermostats White color - same as Sensi thermostat Use with or without horizontal junction box Measures 6.75 x 4.50 inches