Mobile Steel Bin Cart with Modular Stackrack System3 124WB3 38" x 20 1 2" x 54 1 2" 15 Comp Unit (3 Wide) 3 154WB3 38" x 20 1 2" x 66 1 2" Streamline small parts storage and transport with this mobile bin cart built on a welded 14gauge steel base. Heavy duty #4 steel Stackbins nest securely on interlocking Stackracks, creating a sturdy metal shelving style layout that keeps components visible, accessible, and organized. The retractable handle and a caster settwo swivel and two rigiddeliver smooth,