Safco Commercial 4 Shelf Wire Stand Alone, 36", Black Safety Adjustable: Adjustable Assembly Information: Full OFX00019CT Adjustable: Adjustable Assembly Information: Full Assembly Required Back Panel: Closed Back Bookcase Orientation: Horizontal Brand Name: Union & Scale Depth in Inches: 15 Furnishing Color: White Furnishing Material: Laminate Furnishing Style: Modern Furniture Mobility: Stationary Height in Inches: 31 The tilt lock mechanism rocks tilts the chair and locks in an upright position while the tilt tension adjustment knob adjusts the chair's backward tilt resistance 72"H commercial shelving kit includes 4 wire shelves and 4 posts Assembly required