The 3M 1100 Uncorded Earplugs offer high noise reduction at an extremely affordable price!! With soft and slow-recovery foam, these disposable earplugs have a smooth surface and tapered design, to help fit the user's ear canal comfortably. Our 3M1100 earplugs are available by the box of 200 pair. Orange Color. NRR (Noise Reduction Rating) of 29.