Pre-assembled Wire Shelve Pre-assembled design ,spread out in 5 second without tools. Just assemble the wheel if you need to rolling. Stable Storage Shelves: The shelving unit is made of highly durable iron, anti-rust and anti-corrosion and stable.  The shelf can be stored under bed, in a narrow closets, behind doorways and so on, It will not take up more space when not in use. Multi-usage Heavy Duty Shelves This metal shelving unit can be used virtually anywhere as kitchen, garage, basement, bathroom and more. Perfects for storing tools, clothes, books and what ever is taking up space in home or office .Storage Shelves on Wheels : 4 easy-glide durable wheels with 360° rotation. 4 wheels with brakes make the rolling kitchen cart more stable don’t worry about slipping. The mesh racks on both sides can also prevent objects from falling. Holds up to 600 pounds without wheels (125 lbs/shelf), and 300 with wheels (75 lbs/shelf)perfect size: