Now you can get the powerful F.U.N.™ Empty Number Lines into the hands of every student, so they can truly internalize number sense. It has a double-sided, write-on/wipe-off surface so students can follow along with the teacher or use them individually or in centers. Details:1.75" x 17.5" Set of 10 Now you can get the powerful F.U.N.™ Empty Number Lines into the hands of every student, so they can truly internalize number sense This student-sized version of the F.U.N.™ Empty Number Line can be a great tool for students to follow along with the teacher using the full size model