Made here in our wood shop out of pine, this house has generous eave and side walls to increase weather protection. It houses a 96-hole mason bee nesting block with enough room to fit a cardboard box of starter mason bees above the nesting block. Features a key-hole on the back for hanging with a nail. These are made using off cuts of ponderosa pine, so it will have some knots. A great home for solitary bees!