These are the stiffest of the poly-urethane foam plugs. For those who like the feel of UF, but want the stiffness of PVC (which makes insertion easier), the 3M 1100 is a good choice.
Foam Ear Plug Trial Packs Choose from our three different foam trial packs: Try 'Em All!, Just the Highest NRR!, and Just the Softest/Smallest! Our trial packs are designed to help you find the very best plugs for you.
3M 1100 (NRR 29) (Box of 200 Pairs) These are the stiffest of the poly-urethane foam plugs. For those who like the feel of UF, but want the stiffness of PVC (which makes insertion easier), the 3M 1100 is a good choice.