Features: Universal gear matches most of the childrens electric cars on the market. Gear is equipped with a high-power motor, which is the power for childrens electric car modification. 12V 550 gear, used to drive childrens electric cars on the market. Specifications: Material: electronic materials Voltage: 12V Size: app.9.3x19cm/3.66x7.48in Color: As pictures shown Optional PRM: 10000/12000/15000/18000PRM Quantity: 1set Note: No retail package. Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 2 x Motor Gear 1 x Motor Cable(other accessories demo in the picture is not included.) When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please dont hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it