Filled with a selection of drilled wood pieces including oak, beech, hornbeam, apple, cherry, pear, hazel, dogwood and hawthornProvides natural nesting holes for mason bees - adult mason bees and their larvae feed on pollen and nectar that they collect from the plants in the area and are especially good at pollinating fruit treesHandmade - every Insect Flat is unique!Can be used as a single item or in combination with other Insect FlatsDimensions: 17.5 x 20 x 8 cm (H x W x D)