These Modular Solitary Bee Houses are shaped like honeycomb, so they can be used individually or arranged in patterns to make a piece of "wall art" that not only looks great, but also attracts solitary bees. Filled with removable bee nesting tubes, that have been designed specially to appeal to solitary bees. Attract non-swarming solitary bees like Mason, Leafcutter and other solitary bees, these friendly bees are safe around children and pets and almost never sting, but are effective plant pollinators. These Modular Solitary Bee Houses come complete with the nesting tubes are hexagonal in shape, so they can be easily fitted together and they measure 21cm across at the widest point and are 16cm deep.