Accessories:Drive Shaft-1pcM4x2x12 Screw Shaft-2pcsManual number:LOS232005Product major function & usage:Transferring the power from the motor to the whole vehicle.Major advantages of upgrading to this product:1. The joints are made by harden steel #45 which is stronger and more durable to achieve smooth performance.2. Aluminum shaft body reduces the overall weight, hence battery life lasts longer.3. The hexagonal inside of the shaft center body was made to make the transmission more powerful and stable.Other special notes and comments:Suitable for Losi 1/10 Baja Rey Desert Truck, Rock ReyWe use a quality light weight high tensile strength aluminum 6061 T6 and is then anodized with scratch resistant colorsWe also have a big selection of multiple colors available now!! Let¡¯s ¡°hop up¡± your vehicles to give them the best looks and performance on the market ¡¦ colors are available in blue, red, grey silver/gun metal, orange, green, black, brown