I have an Aero 8 Series 5 and I am just in process of replacing my wiper blades as they all split after being stuck to the screen in the hot weather. They are TEX Classic 11.0 inch with 7.2 mm bayonet blade. Direct from TEX automotive they are £11.20 each, factory charge £90 for replacing 3 on its 1st service. I have decided to purchase from Ebay two 28 inch lengths the blade rubber of the same form for £6.58. This will have to cut to length and retained by a rubber cap at the end of the blade similar that shown in your photos. The Tex rubber blade has a raised portion at each end to stop it sliding out of position.
Brian T