A set of 3 S.T. Chemical Zippers featuring Hello Kitty designs, made in 2004. Made of polypropylene and airtight, they were introduced at the time as being widely usable for lunch boxes, storing snacks, organizing toys, and more. The concave lid and convex bottom are designed to prevent them from shifting when stacked. When you think of Zippers, you imagine bags, but at the time, various characters had BOX types like this product. This is an unused item that has been stored in a dark place at home for a long time after purchase. It has been stored in an opened state, assuming use, so it is listed as "Like New." As I couldn't find any other listings for a set of 3, I've listed it as "Rare." #HelloKitty #Kitty #Sanrio #Zippers #STChemical #StorageContainers Thank you for viewing. Title...Sanrio Sanrio/Character Name...Hello Kitty Item/Type...Tableware