These earplugs are of good quality, but no, they are certainly not the best on the market. Or he should not have tried other nothing (well, it's still always choose infinitely better than the yellow 3M and sold a fortune in pharmacies ...). This model is similar to Ultimate Softness brand Hearos (which rebadge that? ...) Sold elsewhere 5 euros 20. The foam is very / too soft, which can complicate the insertion into the ear canal, and it loses (very) quick power "shape recovery." Sound insulation is average.
Conversely, I would advise the Steripan which is also found on Amazon. The price has nothing to do, but the quality either.
