dvintglk

I replaced the OEM with these. Supposed to work for my 2014 GLK350 4matic. The passenger side clipped in nicely but the other driver side packing did not have the same install clips as the other and I see now after having them on for a bit the driver side starts slipping lose. I assume these are not correct. What are you all using? OEM or is there a better aftermarket brand? I have seen where it says both sides are 19" or one is 22" and the other is 19" is that correct?

Michelin 8522 Stealth Ultra Windshield Wiper Blade with Smart Technology, 22" (Pack of 1) and Michelin 8519 Stealth Ultra Windshield Wiper Blade with Smart Technology, 19" (Pack of 1).