Okay, so I finally got around to installing these foam blocks with my new Midea U-shaped AC and... wow, what a difference!

First off - the fit is PERFECT. Like, scary accurate. No weird gaps or having to MacGyver it like with those generic foam strips. Just measure, cut (super easy with scissors), and pop it in.

The EVA foam feels way more premium than I expected? Thick enough to actually block drafts but still flexible. My window used to rattle like crazy during storms - now it's whisper quiet. Plus no more random cold spots in winter!

Installation took maybe 15 minutes while binge-watching Netflix. Pro tip: use the included weather seal tape for extra protection against those sneaky air leaks.

Honestly? Best $20 upgrade for my AC. Energy bill's already looking better this month. 10/10 would foam again.