Modular Storage: This 5-tier single-sided rolling bin rack includes 12 medium PP bins. Each bin has a label slot, so you tag, sort, and find parts fast to keep your space tidy Strong Load: The bin storage rack supports up to 575 lb static and 115 lb per tier. Four leveling feet cut wobble and keep it steady on uneven floors, so your setup stays secure Adjustable Shelves: Quick-clip brackets of the bin rack garage storage unit let you change shelf height in seconds to fit different bin sizes. Big tools and tiny parts both get the perfect spot for smarter storage Easy Mobility: Four 360° casters glide smoothly; two lock to park. Push load up to 260 lb. Rubber wheels of the garage bin organizer secure floors, absorb vibration, and help hush noise while you move