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 straight back knuckle arms to ensure the gears are operating smooth built from aluminum 6061 T6 generate greater durability and many other things sturdy to do business with We utilize 3D improve to CNC item these products your can purchase huge metallic feel This few knuckle hands is exclusive now we would are particularly first maker to make the item inside RC market.