• Designed exclusively for Sensi Wi-Fi thermostat (only models ST55 and 1F87U-42WF)
• It doesn’t 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