Feature: 1. Stainless Steel Material: The RC car drive shaft is made of premium stainless steel, which is adjustable, rust proof, wear proof, easy to use and easy to replace. 2. Universal Cross Knot Structure: Round brass ball is used in the middle of the drive shaft, which has the characteristics of small rotation sound, small virtual position, large transmission angle, etc. 3. Powerful Driving Force: The power of the engine, together with the gear box and transmission shaft, is transmitted to the wheels to generate driving force for the vehicle. 4. Excellent Performance: The spline adopts a six tooth design, which has high transmission torque, is not easy to deform, has low sound, and has excellent quality and performance. 5. Strong While Lightweight: The steel material is firm and powerful, while maintaining the light weight of the transmission shaft, which can perfectly provide better stability for your vehicle. Specification: Item Type: RC Drive Shaft Material: Stainless Steel Diameter: 12mm/0.47in Shaft Diameter: 10mm/0.39in Output Shaft Diameter: 5mm/0.20in Color: Silver Screw: M4 Application: For 1/10 RC car ( Such as: for Traxxas, for Axial SCX10 II, for Redcat Gen8，for Tamiya CC01, etc.). Package List: 2 x Drive Shaft4 x Screw Note: 1. Please allow 1‑3mm error due to manual measurement. thank you 2. The calibration of the display is not consistent, and the color of the item displayed in the photo may be slightly different from the actual object.