Corelle is a brand of glassware and dishware that is made of Vitrelle, a tempered glass product consisting of two types of glass laminated into three layers. The outer layers are clear glass, while the inner layer is opaque white. For those items with colored decoration, the decoration is a glassy ink applied on the outside of the three-layered item. Vitrelle is the brand name specific to the three-layered glass material. The resulting tableware is strong and lightweight, and it is carefully designed to inhibit breakage. Corelle dishware has come in many different patterns over the years since it was introduced, but most of these were retired when Corning divested itself of the Corning Consumer Products Company. Nowadays, Corelles product line includes items of other materials, such as stoneware and plastic. However, Vitrelle glass remains the key material used in Corelle dishware.