Included:1 x Brass Pinion 11TUsage:Use for AXIAL SCX24Requires:Read and follow the Assembly Instruction carefullyLoctite (#242 is recommended) is required to apply to all mechanical screws for safety precautionBasic hand tools ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Hello, Thank you so much for your interest in our products. Please visit our website for more great products more discounts.Especially you will get free Domestic Shipping on Orders $50 (excludes oversized items), free Priority Shipping on Orders $100 in the US.Free International Shipping on Orders $200 (excludes oversized items). If you have any questions, do not hesitate to let us know. Best Regards,NEXRC HOBBY INC.,