Thank you for viewing! This is a Silpat sheet, a reusable cooking paper. It's used by cooking experts and professional chefs. It prevents uneven baking in baked goods, resulting in a crispier finish! - Size: 40cm x 30cm - Color: Black and Red - Features: Non-slip design - Material: Silicone Originally priced at 2500 yen, but selling at a significant discount because I accidentally purchased the wrong size.