Description: What Will You Get: Our dry erase number lines boards includes 16 packs Rich patterns and abundant quantities are enough to satisfy your teaching needs.Material: Our number lines dry erase boards cards are made of quality material. This type of material can withstand long term use and frequent flipping, is not easily damaged or worn out, come with good printing patterns, looking so bright and vivid, easy to the eyes.Interesting Math Manipulatives: This reusable dry erase number lines board is a fun teaching tool to help students understand addition and subtraction more clearly. Very easy to carry and use it anytime and anywhere.The size of cards makes them easy to store and keep.Distinctive Design: The number lines dry erase cards adopt colorful and stylish design make the card eye catching and vivid, which not only can arouse the interest of students or children, but also is a powerful teaching tool for parents and teachers.Wide Applications: This dry erase number lines boards cards can be used as a interesting math teaching tool for daily teaching, school activities, family exercises, etc. It can also be a good gift for family, friends, teachers, students. Specification: Material: Paper Size Chart: 26cmx8.8cm/10.24inchx3.46inch Package Includes: 80 to 10 Number Lines8 0 to 20 Number Lines2 Pens1 Dry Erase Note: 1.This is not infant toy , please take away from children to avoid eating.2.Please allow slightly errors 1-2cm differences due to manual measurement.