The storage shelving system is comprised of one shelving unit that is 72" tall, two shelving units that are 50" tall, and two 90º angle connector units, each with 20" of vertical height per shelf. It's made from high quality materials including an Oak frame, wood veneer shelves, and acoustic felt panels that are designed to minimize noise. It's available in different finishes with your choice of upholstery and it's backed by a limited lifetime warranty.