PREPARE WORK OF CAKE- Prevents cake from sticking to the bottom of the cake pan when placed at the bottom of the pan prior to filling. . CONVENIENT TO USE- Make the cleaning more easy after baking, just simply remove the paper and throw it away. . BEST OF ECO-FRIENDLY- Round parchment paper sheets are unbleached, and the non-stick coating make it greaseproof, It with non-toxic and biodegradable. . HIGH HEAT RESISTANCE- up to 428 Degree F (220 C), can be used in conventional ovens microwaves. Our liners are waterproof oil proof but will allow food vapor to pass through, enhancing the taste. . SINCERELY PROMISE- Irich committed to providing better and better service to purchaser. If you have any questions about or product dont work for Irich round parchment paper, please contact us in time, we will reply you within 24 hours and provide you with the most convenient solution. .