Specifications Material: Particle Board, Steel Color: Black Surface Treatment: High-temperature Spray Molding Style: Modern Shape: Rectangular Assembly Required: Yes Mount Type: Free Standing Number of Tiers: 4 Number of Universal Wheels: 4 Special Feature: Adjustable Recommended Uses For Product: Working, Writing Age Range: Adult Steel Pipe Thickness: 0.8mm/0.03in Particle Board Thickness: 1.5mm/0.06in Overall Load-Bearing Capacity: 60kg/132.27 lbs Each Tier Load-Bearing: 15kg/33 lbs Top Tier Size(L*W): 103*33.5cm/40.55*13.18in Second Tier Size(L*W): 103*40cm/40.55*15.75in Base Size(L*W): 69.5*66cm/27.36*25.98in Adjustment Height: 0.95-1.4m/3.12-4.59ft Gross Weight: 13kg/28.66lbs Net Weight: 12kg/26.46lbs Package Size: 90*55*11cm/35.4*21.66*4.3in.