Pyrex Prepware Set of 4 6-ounce dessert dish, set of 4 includes 4 6-ounce dessert dishes. Whether you are preparing a multi-course meal or simply a snack for one, Pyrex offers products which make food preparation a little easier, from beginning to end. There’s no substitute for Pyrex, the original glass bakeware. Introduced 90 years ago and made of a durable, high temperature material, Pyrex remains the ideal medium for safe, dependable food preparation.