IMPORTANT INFO: To use two Thunder Tumblers together, you MUST use one black tumbler with one red OR one blue tumbler. You cannot pair one red and one blue tumbler together, nor can you pair multiple tumblers of the same color together. Car requires 4 AA batteries and 1 9V battery (not included). Number of Batteries: 5 Features: Remote Control Battery Type: Alkaline Recommended Ages: 5 Years And Up Measurements: 7.8 Width/Inches, 9.4 Length/Inches, 7.5 Height/Inches Base Material: 85% Plastic, 10% Wire, 5% Metal Battery Size: 9 Volt, Aa Care: Wipe Clean Country of Origin: Imported