The World Centric CTL-SC-U3-LF Compostable Lid is constructed out of bamboo and unbleached plant fiber. The Lid is both microwave and freezer safe making it a great choice for both hot and cold items. Soak proof and has no plastic or wax lining. The Lid is safe for hot foods up to 220F, but may fit loosely when hot, so is not recommended for take out of hot liquids. Certified compostable in a commercial composting facility. - Natural; Fiber - Fits 20-48 oz boxes - Length 8-4/5 in - Width 6-4/5 in - Height 1/2 in - Sold per case; 400 per case