3M 1110 UF foam ear plugs (corded version of the 3M1100 ear plugs) are the stiffest of the poly-urethane foam ear 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.See Also:
3M 1110 UF Foam Ear Plugs Corded (NRR 29) (NRR 29) 3M 1110 UF foam ear plugs (corded version of the 3M 1100 ear plugs) are the stiffest of the poly-urethane foam ear plugs. For those who like the feel of UF, but want the stiffness of PVC (which makes insertion easier), the 3M 1110 is a good choice.
3M 1110 UF Foam Ear Plugs Corded (NRR 29) (Box of 100 Pairs) (NRR 29) 3M 1110 UF foam ear plugs (corded version of the 3M 1100 ear plugs) are the stiffest of the poly-urethane foam ear plugs. For those who like the feel of UF, but want the stiffness of PVC (which makes insertion easier), the 3M 1110 is a good choice. Box of 100 Pairs
Product Reviews for 3M 1110 UF Foam Ear Plugs Corded (NRR 29) (Case of 500 Pairs)