Create a step-by-step path for the Programmable Robot Mouse using the 30 double-sided coding cards to provide a hands-on introduction to coding concepts. The mouse lights up, makes sounds, and features 2 speeds along with colorful buttons to match coding cards for easy programming and sequencing. Includes Activity Guide. Use with the Robot Mouse Coding Activity Set (LER 2831) for more play options, learning opportunities, and fun! Mouse measures 4"L and requires 3 AAA batteries, not included. # Pieces In Set: 31 Number of Batteries: 3 Learning Skill: Engineering Power Source: Battery (not Included) Recommended Ages: 4 Years And Up Measurements: 2.6 Height/Inches, 6.4 Length/Inches, 6.4 Width/Inches Assembly: Assembled Base Material: 100% Plastic Care: Wipe Clean Country of Origin: Imported