These lids are for the 220 ml (approximately 7 ounces) bowls and are made of sugar cane fiber that is a by-product of the sugar refining process. The lids are bleached with hydrogen peroxide and do not have any coating, so that they are biodegradable and compostable. They can be used for hot or cold foods, and are thick and sturdy, microwaveable, freezer safe, oil resistant and capable of handling boiling water. Soft white color. Pack of 50. Made in China. Eco Categories: Recycled, biodegradable, agriculturally based, less toxic.