These open fronted nest boxes are a healthy size and are ideal for most garden birds, offering 1.5cm thick wooden walls for insulation. Perfect for Robins in particular, these birdhouses come in a great value pack of two allowing you to position them at different vantage points. During the colder months, providing shelter for our garden visitors is essential, and these sturdy bird boxes are a perfect welcome for our feathered friends. It is recommended that you site robin nest boxes no more than 1 - 2 metres high. The box measures 29cm x 20cm x 17cm and the opening is 13cm x 7cm - open fronted nest boxes are preferred by not only Robins but also Wrens and Pied Wagtails. * Thick cut wood for insulation * Value pack of 4 birdhouses * Opening 13cm x 7cm * Ideal for Robins