ThisWooden Storage Boxworks with the Forminant cabinets and open shelves line – Widths: 15″, 25″ and 39″. Runners on the side mean that all material and property boxes can be stacked, without there being any danger of slipping. Material boxes can be used individually if needed. These wooden boxes are designed to carry more weight, provide more protection and are better for long term use. The wood chosen has long fibers which can help to create a smooth finish as well as creating tension which increases the strength. Perfect for early learning centers, classrooms or children’s libraries. Made of genuine beech wood veneer that is reusable and environmentally friendly. Two built-in grip handles Durable genuine beech wood Runners on side keep box from slipping Ecological, hygienic w/easy care