A. Made of certain materials, it is sturdy and durable, enhancing the aesthetic appearance. B. It is convenient to use and easy to replace. C. Quantity: 2 pieces. D. Applicable vehicle models: TRX4M 1/18 remote control climbing vehicle. E. Tool category: Assembly type. F. Remote control vehicle parts and accessories: Servo accessories. G. Purpose: Vehicles and remote control toys. H. Technical parameters: Value 2. I. Remote control peripherals/devices: Receiver. J. Applicable vehicle model type: Automobile. K. Four - wheel drive mode: Assembly. L. Wheelbase connection method: Screws. M. Color: Black. N. Material: Stainless steel. O. Dimensions: Length 43.5 - 54 mm, 59.8 - 74 mm. P. Packaging content: 2 remote control vehicle drive shafts. Q. Only the above packaging content is included, and no other products are included. R. Note: Due to light reflection and different displays, the color of the items in the picture may vary slightly from the actual product. The allowable measurement error is +/- 1 - 3 cm.