Case of 1,000. These 20 oz. White Compostable Cups PLA Lined from PrimeWare are perfect for serving both hot and cold beverages. They are made from SFI (Sustainable Forestry Initiative) certified paperboard sourced from sustainably managed forests and are PLA or corn-based plastic lined. They are freezer safe for maximum convenience. These cups are disposable to help reduce time spent cleaning after beverage service.