The blank student desk tapes allow teachers to differentiate math instruction for students' individual needs. These open-ended desk tapes also provide teachers with a customizable hands-on tool for every math lesson. Each roll of self-adhesive number line tape includes 36 student desk tapes that measure 20" x 1" each. Student desk tapes are perfect for students to reference when learning about numbers. Each roll is packaged in a convenient self-dispensing box.