Double Wiper Seal
They are pretty straight forward, my old one was stapled at each end and had sticky tape down the middle in between the two blades for all the rest. Your new wiper will be the same, sticky tape in the middle, you can pop a staple on each end if you like, I think I just did mine with the tape and let it go at that, haven't had any problems yet. I got my new seal on Amazon. Oh for the bulb seal across the top it is held on with screws using a square bit for removal and replacement.
2005 Dodge Ram 3500 DRW, 2013 Redwood 36RE