Features: brand new and high quality Designed for 1:18 TRX-4 RC vehicles. Size: Transmission shaft about 60x18x10mm/2.36"x0.71"x0.39"; Gearbox base about 50x50x20mm. Package includes 1pcs transmission shaft, or 1pc gearbox base. Made of metal. TRX-4 upgrade parts accessory. Specifications: Material: Metal Color: As Picture Shows Size (Approx.): Transmission Shaft-60x18x10mm/2.36x0.71x0.39in Gearbox Base-50x50x20mm/1.97x1.97x0.79in Weight (Approx.): Transmission Shaft-35g Gearbox Base-20g Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks Package includes: 1 Piece RC Accessories Transmission Shaft or 1 Piece RC Accessories Gearbox Base