64T main gear and 17T 21T 26T 29T motor gears combo Made of high quality material long-lasting performance Rust-proof treatment on the of gears Suitable for , RedCat 1/10 RC Car. Height: 11mm (motor gear); 9mm (main gear) Tip diameter 17T: 11.5mm 21T: 14mm 26T: 16.5mm 29T: 18.5mm 64T: 40mm Suitable shaft diameter: 3.175mm (motor gear); 5mm (main gear) Use: Vehicles & Remote Control Toys RC Parts & Accs: Motors Four-wheel Drive : Assemblage Tool Supplies: Assembly Category Technical parameters: Value 4 Model Number: 64T 17T 21T 26T 29T For Vehicle Type: Cars Upgrade Parts/Accessories: Gear Remote Control Peripherals/Devices: RC Car Spur Gear colour: Brass Material: metal Package Contents: 10 x 64T Gear 10 x 29T gear 10 x 26T Gear 10 x 21T gear 10 x 17T gear 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.