Specifically engineered for 1 / 30 scale car, this gear set seamlessly replaces stock gears across multiple models, requiring without extra adjustments perfect for enthusiasts and professional upgrades Smooth metal surfaces accumulation, enabling effortless cleaning and routine maintenance to prolong your car ' s service life while uninterrupted driving enjoyment Features meticulously designed gear teeth for meshing efficiency, minimizing power loss during operations to maintain optimal speed response in racing scenarios without lag or insufficient power Crafted from premium steel, this metal gear set delivers wear resistance and extended lifespans, solving the gear wear issue for frequent car users while ensuring stable on various terrains The steel construction provides outstanding impacts resistance, effectively absorbing vibrations and shocks to protect internal components during off road adventures and extreme driving conditions, Manufacturer: SXRQ