Solid oak wood panels with sturdy steel shelvesConstructed with 1" thick solid oak end panels and 20-gauge steel putty color shelves. Four 4" swivel casters (2 locking) provide easy, quiet mobility.Includes 3 tiers of six 6 3/4"D sloped shelves with 11 1/2" clearance between each shelf.Caster assembly required.End panels available in 3 finishes: -76 dark oak, -80 natural oak, -112 medium oakOverall dimensions: 42H x 37W x 18"D