This is not a "Universal" fitting wiper in my opinion. I take that to mean it will fit nearly all cars with conventional (ie old school) wiper blades but it only includes the fitting for a hook type wiper arm (despite the packaging showing diagrams for bayonet and side pin fittings).
You may be able to re-use the arm fitting from your old wiper blades, but don't count on it as they are not all interchangeable.
If you are in the market for a hook fitting the wipers seem of good quality and are a good price.