How to replace windshield wipers of a 2005 dodge caravan?

i've bought both of the wipers

one 26'; and 28';How to replace windshield wipers of a 2005 dodge caravan?
First off, I'm quite sure your van needed 28'; on both sides. To install simply lift the wiper arm and push the small lever near the center of the old wiper blade(look closely), then push the old blade down. It should come right off. To install reverse the process.