Bats are great for insect control—invite them into your backyard setting with the Heath BAT-1D Deluxe Bat House. Constructed of weather-resistant and decay-resistant cedar, the single chamber can comfortably hold up to 20 bats. The grooved inner surface allows for easy entry. -Constructed of weather-resistant and decay-resistant cedar -The single chamber can comfortably hold up to 20 bats -Grooved inner surface allows for easy entry -Prevents mosquitoes that carry the Zika virus