Stainless steel wheephole covers
Small openings can lead to large consequences
Buildings with brick cavity walls require open joints to ventilate the cavity. Wasps, drones and mice love these openings to gain access. Bee-biters will allow ventilation but effectively block all vermin.
Bee-biters® biters are the only available wheephole covers that can be placed in existing walls, that adjust automatically to any joint width and lock themselves. And best of all: they are off stainless steel!