Description:The Perf box design highlights the natural organic appeal of the wood and has a modern and contemporary design element. The Perf boxes are a permanent item at the SFMoMA. The Perf Box 4-High in White stack and rotate independently, free from hardware, and held in place by gravity. It is a smooth and well made rotation with grooves in the wood on a plate. The strong locking casters give it mobility and flexibility. They are very well-made and a flexible storage solution holding LPs, CDs/DVDs, Books, media etc. It can be a narrow bookcase in a living space or home office as well.They are made from Baltic birch and durable White laminate top layer. It is thick and sturdy and the process of thin-ply gives a nice revealed edge. The precise joinery of the corners give it a nice architectural appeal - simple, yet organically beautiful. The quality and craftsmanship really stands out for this versatile bookcase.Materials:Baltic Birch thinply, white laminate top layer, castersDimensions:Perf Boxes 4 Stack: 13" d x 13" w x 65" h