Not only are they easy to use but they are lasting as well. There was the fear, mine that is that they may let go after a few years or at least start to dog ear (corners lifting up

), but this has not been the case have 4 aircraft approaching 4 years old with still no problems.
I dust them very carefully. This Tamiya Zero in the photo was completed in 1999.

The fit for the intended kit has been flawless for me. The price is right. Though lately I've been using EZ mask as well.
Fly Navy!