Fits any standard single gang box - Viking door bell button panel- Permits user to install a simple door bell today and allow for an easy upgrade to a viking E-40 door phone- Fits any standard single gang box- Offered in two colors off-white and dark brown- Panels are made from unbreakable plastic- Weather resistant gasket included- Screw terminals on button for easy wiring- Use with the Viking VE-3x5 enclosure for surface mounting- Promotional card for future sales VKDB40BN