14 x 8 x 28cm approx.
Timber is untreated, as some chemicals can harm bats
Grooved “bat ladder” giving easy access to bats
Entrance slit is 20mm; optimum dimensions for bat species that favour living in crevice and tight spaces.
The entrance slit is located at the bottom of the box, so that accumulated bat waste can drop out or be pushed out as bats emerge