Thank you for viewing! These are Neo Champ batteries, which I have made for many racers and have received great reviews! In Mini 4WD, the batteries are directly related to speed, second only to the motor! I have experience winning high-speed races using my creation method, and other racers have reported placing in races and updating their time attack records! ✨️ I hope you enjoy the current Mini 4WD scene, which features many high-speed races! ✨️✨️ As it takes time to make each one, it will be first-come, first-served. Thank you for your understanding. I also recommend purchasing them with a motor! ✨️ 【Recommended Purchase Set】 Motor & Counter Shaft & Batteries ✨️↑↑↑ Set for advanced speed all at once ✨️ This product does not guarantee certain victory or speed improvement. Please refrain from evaluating based on the above points after purchase. #Mini4WD #MachDashMotor #SprintDashMotor #TorqueTuneMotor #FinishedProduct #PowerDashMotor #BrokenIn #HyperDashMotor #NeoChamp