Made from plant based PLA compostable plastic. Specially designed for cold beverage cups. Heat resistant up to 120°F and freezer safe. 100% compostable in two to four months in a commercial composting facility. Not microwavable. Fits: 9-24 oz Cups; Material(s): PLA Compostable Plastic Derived from Plants; Color(s): Clear; For Use With: World Centric® CPCS9Q, CPCS10, CPCS12, CPCS16, CPCS20.