Chamber with dome top and internal crevice providing a variety of roosting opportunities. Similar to a Schwegler 2FN with internal panel. The type that will be used by male pipistrelles aiming to attract females in the autumn and also by a range of woodland bat species. 16mm hole for endoscope inspection in the base facilitating inspection, potentially avoiding working at height with the right equipment. Light internal finish facilitates detection of droppings or rub marks. Top loop makes initial attachment to the tree easier – with two further attachment points for 6” nails for security.