DIY: Replace Rear wiper arm Toyota Highlander 2018

Do it yourself it's easy, All I had to use is adjustable spanner and I had to order the highlander red wiper assembly just the arm from Amazon and it costed me less than $20 to buy it.
I did try to get it repaired in showroom and they asked me for $550 that's huge so I thought of trying it myself and I saved by $530