2" Class 2 trailer hitch. Max towing weight 3500 lbs, Max ball weight 350 lbs. Important Note: This trailer hitch is for towing only. It can not be used to transport bicycles. A hitch especially introduced for the North American market. With the electrically folding towbar, you do not have to stretch beneath the car to detach or remove the towbar. Pressing a button in the luggage compartment folds the towbar out. A simple hand movement positions the towbar in a locked position. For increased safety there is a light indicator on the button that indicates that the towbar is locked. If the towbar is unlocked, a warning message is shown in the car's instrument cluster. This kit contains software that can’t be purchased online. You must bring your vehicle to a dealer to purchase and download this software.