Designed to help you color-coordinate your classroom binders and books, this sheet of fluorescent yellow stickers corresponds with your level B+C program. The sheet comes with pre-cut small strips you can stick to the outside binding of your Sonlight B+C books. Then, watch your B+C books stand out from other programs o Sonlight resource: https://www.sonlight.com/products/sheet-of-book-labels-b-c