This green epoxy shelving is suitable for all environments, but ideal for moist and humid environments that could otherwise lead to corrosion. Each unit comes with 4 shelves, 4 posts and 16 pair of split sleeves. This green epoxy shelving is adjustable in 1" increments, so shelves can be spaced as you need them. Each shelf can hold up to 800 lbs or a maximum of 2000 lbs per unit. This green epoxy shelving is a Hubert brand product, offering high quality at a great price.