This number line is PERFECT!  I love that the odd and even numbers are different colors, which helps students to see a pattern.  It also means that they can make the numbers closer together but the students will still be able to differentiate between the numbers.  The word-form on top of each one is FANTASTIC!!!!!!!!!  I made sure to laminate mine before posting it.  Anything that I put in my classroom quickly bends and gets wavy because of the condensation on the slick paint on the walls.  I wish they offered this in different colors or themes, but it's absolutely perfect functionally.  I wouldn't hesitate to buy one or to recommend this to someone.  I have other teachers ask me ALL THE TIME about where I got this one.