3 years & up. These colorful counters turn sorting and counting activities into exciting adventures. With these textured Backyard Bug Counters, children develop fine motor skills, sensory learning, color recognition, and important early math skills. Use these counters in a lesson about addition and subtraction to give children a visual of the concepts they are learning. The counters are made of soft rubber and come in 6 colors packed into a reusable plastic tub. Suggested activities also included. Set of 72.