My review concerns only the adhesive of the draft stopper.

I bought the wide one with 2.5 centimeters. I had reservations at first when installing it regarding the adhesive it has, which seemed to be a few days old, completely ineffective at sticking to the surface. When I tried to remove the draft stopper because I installed it incorrectly, it wouldn't come off at all until the foam tore and I was left with it in my hands.

As for the insulation it provides, it's like all the others.

I ordered three pieces and one of them was smaller in size.
Luckily, it still served its purpose for the job I needed it for...

For the money, it's great, it does the job perfectly. Like all air stops, they are sensitive to sun and dust and are not designed to last forever, that's why they are cheap, you replace them when needed with a new one and your job is once again perfectly done.