This is a 3-tier shelf, each tier is 18 in. x 48 in., the height is 48 in., each tier holds 350 lbs. maximum weight capacity is 1050 pounds. The whole is made of heavy duty metal, NSF certified, each shelf supports 1 in. as the minimum adjustment unit for height adjustment, comes with leveling feet, shelf liner. This shelf is mainly small and exquisite, good to exist in the bathroom, kitchen, balcony, etc. It can also be stacked with other shelving racks as a complementary piece, used in warehouses, supermarkets, etc. It is also a good choice as a shelf. The structure of the product is simple, and you don't need to worry about the installation, you alone can quickly assemble it. Color: Black. Material: Steel.