Caspari Clear Acrylic On the Rocks Highball Set of 4. Size: 14 Oz. each. BPA-Free, Reusable, shatter resistant, clear polycarbonate plastic glass that has the look of crystal. No visible seams. Top rack Dishwasher safe. Ideal for entertaining, Weddings and Event Glasses. Caspari Acrylic Shatter Resistant Glasses Collection. Caspari Acrylic Barware and Drinkware for Entertaining found available and in stock now at the Interior Digs N Gifts Shop Online or In store for local pick up.