These bat boxes offer excellent insulation and minimum condensation for roosting bats. Ideally 2 to 3 boxes should be erected facing in different directions to account for temperature changes day to day. Our WoodStone® range of wildlife care products have been designed and developed as part of our professional Vivara Pro range and are constructed from a mix of concrete and wood fibres, guaranteeing longevity and durability for your garden. Every WoodStone® product from CJ Wildlife is guaranteed for 10 years.