Item Type: 1/18 RC Drive Shaft_x000D_Weight: 29g/1oz_x000D_Product Type: RC accessories_x000D_Material: Steel_x000D_Front Drive Shaft Length: 45-55mm/1. 8-2. 2in(adjustable)_x000D_Rear Drive Shaft Length: 61-75mm/2. 4-3in(adjustable)_x000D_Product Diameter: 8mm/0. 3in_x000D_Applicable Model: for TRX4M 1/18 RC car 1Superior Grade Material: Made of superior grade steel material, use more powerful, better control of your remote control car. 2High Strength Steel Structure: Lightweight upgrade, instantly improve the overall handling performance, improve the durability of the remote control car. 3More Efficient Power Transmission System: The power transmission system provides a more stable ride, small rotation sound, small virtual position, large transmission angle, with nice performance. 4Small Size: Light weight, high accuracy, easy installation and disassembly, effectively improve the performance and strength of your car. 5Reasonable Design: It can directly replace the original old or damaged parts, providing you with convenience, and also obtain higher strength.