Feature:1. HIGH QUALITY MATERIAL: RC rear drive shaft is made of high quality 45 hardened steel material, which is hard and reliable, adjustable, rust and wear resistant.2. HIGH PERFORMANCE: RC car rear drive shaft is equipped with combiner to provide smoother action and achieve higher performance and more efficient power transmission system.3. SEPARATE DESIGN: RC car drive shaft's separate design reduces the failure rate, and the power of the drive shaft is transmitted to the wheels to make the car produce driving force.4. INCREASE POWER: CVD steel rear drive shaft has higher bearing capacity and larger drive angle, which can maximize the power of RC car, and the transmission effect is higher and more stable.5. RETRACTABLE: The special design of RC drive shaft increases the smoothness and angle, and the retractable design provides more space for the rocker to swing better.Specification:Item Type: RC Car Rear Drive ShaftMaterial: Steel, Aluminum AlloyDiameter: Approx. 13mm/0.5inOutput Shaft Aperture: Approx. 5mm/0.2inProduct Length: Approx. 120mm/4.7inTelescopic Range: Approx. 120-150mm/4.7-5.9in (Adjustable)Hexagonal Bonding Device Diameter: Approx. 12mm/0.5inThickness of Hexagonal Binding Device: Approx. 5mm/0.2inAxle Length: Approx. 3.5cm/1.4inSuitable for SLASH 4x4 HQ727 Short Truck Car Package List:2 x Rear Drive Shaft4 x Combiner4 x Pins4 x Grub Screw2 x Axle4 x Nuts2 x AccessoriesNote:1. Due to manual measurement, please allow 1‑3mm error.2. The monitor calibration is not consistent, the color of the items shown in the photo may be slightly different from the actual object.