Very good earplugs!
They reduce noise levels (we are talking about industrial-level noise) to very tolerable levels, without completely "deafening" you, so that you can still hear sirens/alarms in case of emergency.
They are a bit tight when they are new (and I don't have a big head).
I left them "worn" on their cardboard box (lengthwise) for 4-5 nights and they opened up just fine (without being loose).
Unfortunately, after 2-3 hours of use, you have to take them out for 10-15 minutes to let them dry, especially in the summer, but that's the case with almost all earplugs.
(I switch to inner earplugs during that time (for about half an hour) and I have no problem.

Excellent and comfortable, they have the lowest category of sound insulation but when using tools such as a wheel, etc. they are fine.