Brand Name: GTB Origin: CN(Original) Tool Supplies: CNC CUTTING Material: Hardness Steel Upgrade Parts/Accessories: CNC Metal RC Parts & Accs: HPI RS4 III Use: Vehicles & Remote Control Toys Model Number: RS4-005/006 Remote Control Peripherals/Devices: HPI RS4 III For Vehicle Type: HPI RS4 III Four-wheel Drive Attributes: Assemble Parts Hardness Steel Drive Shaft Dog Bone for HPI RS4 3 EVOThe new modified universal joint adopts a CVD structure, and the steering is flexible and smaller. The dog's bone axis is increased in diameter and is more robust without breaking or deformingHigh hardness steel heat treatmentComplete:1set/4pcsFront:1set/2pcsRear:1set/2pcs label: Hardness Steel Drive Shaft Dog Bone for HPI RS4 3 EVO