Fits: T-Maxx 3.3, Nitro (all versions), E-Maxx Brushless, E-Maxx (2nd generation), E- Brushless, E-. Does not fit: T-Maxx Classic, E-Maxx (first generation), Summit, E- VXL Brushless, Maxx. The dogbone is with more turning and more sturdy .High reliability, ensuring smooth transmission. The Steel Constant Velocity Driveshafts made from harden steel for greater strength and stable driving performance.Tough steel for long-lasting durability and low wear. Design to handle the extra horsepower and articulation a for truck can deliver.Steel #45 drive shaft, navy blue silicone boots, good apperance. Tool Supplies:Assembly Category RC Parts & Accs:Servo Accessories :Vehicles & Remote Control Toys Technical parameters:Value 2 Remote Control Peripherals/Devices:Receivers For Vehicle Type: Four- Drive Attributes:Assemblage Wheelbase:Screws color:Silver Material:Stainless steel Package Contents: 4 x Drive Shaft 1 x Mounting Accessories Set Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.