Modular Storage: This 5-tier double-sided rolling bin rack includes 48 medium blue and 20 large gray PP bins. Each bin has a label slot, so you tag, sort, and find parts fast to keep your space tidy Easy Mobility: You steer with a side handle and four rubber swivel casters (2 locking). The bin storage rack supports a 360 lb/163 kg push load, so heavy tools roll smoothly, park securely, and your workflow speeds up Flip-Top Design: You flip the reversible lid of the bin organizer shelf to add storage up top. You keep go-to tools within quick reach, so tasks move faster and your space works smarter Durable Build: Heavy-duty Q235 steel with a powder-coat finish resists corrosion. 0.07 inch (2 mm) PP bins resist impact and chemicals to keep your gear protected Back-Hanging Mount: You secure bins to the frame with a peg-back mount. The snug fit cuts shake and drop risk while you move, so items stay put and your storage stays stable