Great for the money, but NOT noise cancelling
A nice selection of ear plugs that work well.  I tried them in the shower to keep water out of my ears, tried them napping, tried them with an impact wrench, and tried them shooting.  They performed well in all situations and would recommend them, as long as you keep in mind they are not active noise cancelling, and they have no NRR (Noise Reduction Rating), so would recommend that you test with lower then the max expected decibel level to make sure they will perform for your needs.
Rating: 4 stars