Let’S Go Play With Friends That Are Fun To Roll, Stack, And Grasp! Drop The Two Double-Sided Chunky Wooden Go Tots Disks (4 Collectible Characters) Into The Numbered Wooden Race Cars, And Push The Cars To Make The Go Tots Spin! Numbers And Colors On The Cars Inspire Counting, Sorting, Matching, And Color Recognition Games. Compatible With Other Go Tots Play Sets. With Melissa & Doug Go Tots, Toddlers 12 Months And Older Will Discover A New Kind Of Kinetic Play That Offers Opportunities To Explore Cause-And-Effect Through Delightful Motion-Driven Moments. Relatable, Diverse Characters And Appealing Shapes And Textures Encourage Connections And Exploratory, Skill-Building Play.