These unique chalk crayons are a great alternative to dry chalk and liquid chalk. They are non-toxic, water-based, wet-erasable and safe for adults and little ones to use. Use these to decorate on non-porous surfaces like glass, mirrors, windows, tiles, metal, plastic, etc. They are so versatile, you can use them to label wine glasses, lunch/snack containers or even mark your tires! 

Compatible with the First and Last Day Reusable School Signs.