High quality: Made of high-quality materials, the product is . fine workmanship, looks very beautiful. Easy to use, Easy to replace Wheelbase: Screws Technical parameters: Value 10 Model Number: D2-ARAC3999 For Vehicle Type: Cars Tool Supplies: Assembled class Four-wheel Drive : Shell/Chassis/Wing/Head Remote Control Peripherals/Devices: Remote Controller Upgrade Parts/Accessories: Gear RC Parts & Accs: Connectors/Wiring Recommend Age: 12+y Use: Vehicles & Remote Control Toys Product Name: DIFFERENTIAL OUTDRIVES Gears and Planet Gears Applicable RC Cars 1: for ARRMA , 3S and 4S Vehicles Scale: 1/10 Material: Metal colour: As shown Package Contents: 2 x RC Upgrade Parts kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.