Johnston Jeff Multinester Nest Box with Shingle Roof. The nest box is made from 15mm saw falling redwood for good insulation and protection for nesting birds. A non-toxic water-base stain is used for longevity. The hole fronted or open fronted dual use nest box. The front can be unscreweed and removed for easy cleaning. The 30mm hole is suitable for Tits, Sparrows, Nuthatches, Redstarts and Flycatchers, with a decorativeshingle style roof .Dimensions in mm210H x 120W x 172D