These number lines are color coded to make it easy for students to recognize odd and even numbers. They feature a write-on and wipe-away surface to make it easy for students to use over and over again! Student number lines are the perfect hands-on tool for reinforcing mathematical concepts such as counting, identifying number patterns, partitioning numbers, comparing numbers, and building number sense.Details:Red and blueNumber lines measure 22" x 1.5" each3 packs (30 number lines per pack, 90 number lines total)Color-coded for even and odd numbersWrite-on and wipe-away surfaceFor ages 5-9