This system includes : Aluminum Back Knuckle Inner Part-2pcs stainless Cap Head Screw 2.5x8-4pcs Metal Cap Head Screws 2.5x10-12pcs Product major function & usage:
Give you the interior gears of right back knuckle arms to guarantee the gears are running smooth built from aluminum 6061 T6 generate greater durability and many other things sturdy to work with We utilize 3D improve to CNC item these items your can purchase huge metallic feel This couple of knuckle fingers is exclusive now we'd are very first manufacturer to help make the item in the RC market.