Thank you for viewing! These are Neo Champ batteries, created for and highly praised by many racers! In Mini 4WD, batteries are directly linked 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 improving their time attack times! ✨️ I hope you enjoy the current Mini 4WD scene, which features many high-speed races! ✨️✨️ Each set takes time to make, so it's first-come, first-served. Thank you for your understanding. We 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