Round Poly Cans are made of High- density polyethylene that offer distinct advantages over terne plate and stainless steel construction. They're inert, so they stand up to tough acids and corrosives, as well as heat. They're dent proof, puncture resistant... and their color is integral to the can. They're even available in space saving configurations like our oval cans to give your shelves up to 30% more storage capacity. Poly cans are also available in stainless steel hardware for highly corrosive chemicals or high purity liquids.