Made from virtually unbreakable polycarbonate plastic these 40oz Elite Polycarbonate Nucleated 2 Pint Tulip Tumblers are CE marked 2 pint to brim with nucleated base which maintains a head on the beer, and offer a safe and practical alternative to glassware for outdoor events like festivals and sport events. More environmentally friendly than some disposable glasses, they can be washed and reused before being recycled at the end of their life.