Place our Bat Houses near your home to attract hungry pest-eating bats. Bats consume mosquitoes, grasshoppers, moths, flies, crickets, gnats and even fruit flies. A single brown bat can eat up to 600 mosquitoes in one hour! Our bat house is 3″x6.5″x10.5″ and has 2 chambers. The interior chamber surfaces are deeply grooved wood, creating an excellent clinging surface for roosting bats. Holds up to 125 bats.