This unique bee house is designed to simulate the natural nesting conditions loved by the solitary bees. The hole sizes of this habitat are precisely carved to attract non-swarming bees like the red mason bee, leafcutter bee and other solitary bees. The bee nester is constructed in durable fir wood with additional stacking trays that can be opened for checking and cleaning. Material: Solid firwood Dimensions: 22 x 20 x 20 cm (L x W x H) Weather resistant Assembly required: No Bee House, Bee Houses, Bee House, Bee Houses, Mason Bee System, Mason Bee Systems, Insect House, Insect Houses, Insect Habitat, Insect Habitats, Bug House, Bug Houses, Bug Room, Bug Rooms .