3M ™ E-A-R ™ Classic Soft Earplugs PR-01-005
3M ™ E-A-R ™ Classic Soft Earplugs PR-01-005 are made of flexible, energy-absorbing polyurethane foam.
As the foam warms to body temperature, it becomes softer and molds to the user's ear canal.
This 'shaping' allows the earplugs to guarantee excellent noise resistance and, over time, the foam continues to soften, guaranteeing greater comfort.