Knock-down structure metal book shelf: Specification(mm):H2235*W1005*D450, H2230*W950*D450 Material:High quality cold rolled steel sheet Thickness:0.5-1.0mm 1.Surface: Electrostatic Coating 2.Color: Different color available according to RAL colour sample. 3.Advanced knocked-down Construction which could be assembled within 5-8minutes. 4.Different Dimensions and styles available. 5.Different handles available 6.Drawers are designed for legal sized letter and files 7.Drawers can open 100% 8.With ball bearing sliding door runners