It is a 6-tier shelf which is 45 inches wide, 18 inches deep and 82 inches tall and has a weight of 43.9 pounds and can support up to 2,100 pounds (or 510 pounds with the casters). It is NSF certified, which comprises of durable steel and cannot bend even when carrying a lot of weight. It assembles quickly: all you need to do is attach the adjustable clips to the posts to the possible height you prefer, insert each shelf and you will have it together within approximately 15 minutes. The swivel 360 -degree casters allow it to move smoothly throughout the room and hence is applicable in a range of things such as pantries, offices, balconies, garages, warehouses, or workshops. Its wire shelf system that is adjustable allows you to make the shelf heights vary as you desire and in whatever way you wish to because it accommodates items of any size, whether large or small, such as boxes or small containers. We have a customer-satisfaction warranty and we have a support team that will assist you in a jiffy in case you require something.