Increase children's confidence with counting and number recognition using nature-inspired Magnetic Wood Cookie Counters. Made in part using Poly+, this set is durable enough to be used indoors and outdoors for numeracy activities. Each piece has a black magnetic backing to allow for convenient use on a blackboard or whiteboard in the classroom. Set includes faux wood pieces marked with numbers 0 through 20. For ages 18 months and up. Each piece measures 2" x 2" x .5".