2 set RC Car part: 1 pcs 9T Ggear & 1 set Middle Drive Gear Set Upgrade Parts/Accessories: Hydraulic Transmission Box Remote Control Peripherals/Devices: Remote Controller Four-wheel Drive Attributes: Motors Tool Supplies: Tools Use: Vehicles & Remote Control Toys For Vehicle Type: 1:5 Trucks Size: 1/8 Upgrade Parts/Accessories: Gear RC Parts & Accs: Speed Controllers Tool Supplies: Assembly Category Model Number: 83013 Remote Control Peripherals/Devices: Receivers For Vehicle Type: 1/8 Trucks Four-wheel Drive Attributes: Assemblage colour:Black Material:metal Package Contents: 1 x 9T Ggear 1 set x Middle Drive Gear set Only the above package content, other products are not included. Note: Light 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.