"Teach your little engineer hands-on coding skills with this Learning Resources Stem Robot Mouse Coding Activity Set.Watch the product video here. Build your maze & then use the coding cards to create a step-by-step path for Colby, the programmable robot mouse Program the sequence of steps & then watch Colby race to find the cheese Colby lights-up, makes sounds & features two speeds along with colorful buttons to match coding cards for easy programming & sequencing Add multiple players with Jack, the programmable robot mouse (sold separately) What's Included Mouse robot 16 maze grids to create a 20"" x 20"" maze board 22 maze walls 3 tunnels 30 double-sided coding cards 10 double-sided activity cards Cheese wedge Acitivity guide Age: 5 years & up Requires 3 AAA batteries (not included) Plastic, paper Wipe clean Imported Model number: LER2831 Size: One Size. Color: Multicolor. Gender: Unisex. Age Group: Kids."