This 4 Sided Library Display Unit is perfect for not only homes and schools, but for office waiting rooms and play areas! The 4-sided shelf offers a multitude of book storage and display options.Bring the class to you, or take big books to class! Storage for big books on all four sides, accessible to all children. Smooth UV finish and rugged, Baltic Birch construction. Heavy duty, dual-wheeled caster for mobility. Baltic Birch.