Fast Shipping From USA, Delivered In 2-5 Business DaysThe height of the bottom from the ground is 10cm, which is convenient for cleaning tools (for example sweeping robot, and vacuum cleaner)The guardrails on both sides are upgraded, bid farewell to cumbersome installation, and prevent items from fallingSilent universal wheels, no damage to the floor, strong load-bearing capacity, stable and no shaking, load-bearing increased by 50%Easy Assemble: this foldable shelf organizer is easy to assemble with no tools required. the structure is very simple and you only need to spend 5 seconds to install it.Sturdy Construction: Constructed from heavy-duty metal iron, this durable storage rack,  each  layer shelf holds up to 66lbs,  4 layer shelf max load weight is 264lbs.5 layer shelf max load weight is 330.69lb/150kg. Rolling & Detachable Wheels：The foldable storage shelves features 4 professional grade caster wheels for easy mobility .Stylish & Modern Design：Foldable metal rack storage shelving for heavier storing and organization, It is great to use in living room, bedroom, kitchen , garage etc.Strong & Durable：Our storage shelf rack is made of high quality metal, which is strong and durable. The metal reinforced support and the triangular metal bracket ensure its stability. Installation VideoPRODUCT SPECIFICATIONSNameHeavy Duty Foldable Metal Organizer Shelves with WheelsBrandJOYBOSColorBlack, WhiteMaterialCarbon SteelProduct Dimensions4-layer：27.9"W×13.4"D×49.2"H(71cmW×34cmD×125cmH)5-layer：27.9"W×13.4"D×65.0"H(71cmW×34cmD×165cmH)Product Weight4-layer：13.85lbs/6.28kg5-layer：17.64lbs/8kgPackage IncludesMain part+Wheels*4