LINCO polyolefin caster wheels offer a maximum protection against corrosive and abrasive materials found in some environments. Made from polyolefin and mold injected, polyolefin caster wheels are built with the same strength as many metal and nylon type wheels of the same size and style. Although they are built with strength, polyolefin caster wheels are subject to failure when exposed to cold and hot temperatures. It is not recommended to use polyolefin caster wheels in a refrigerated store area as they will become brittle and easily subjected to failure.