WITH SELF-ADJUSTING FOAM, 21DB OF NOISE REDUCTION AND A PATENTED BAND FOR CONVENIENCE, THIS IS THE PERFECT SOLUTION TO PROTECT YOUR LONG-TERM EAR HEALTH AND HEARING - SMOOTH, ERGONOMIC EARPLUGS FIT IN THE EAR FOR MAXIMUM PROTECTION - SELF ADJUSTING FOAM EXPANDS TO FIT VIRTUALLY EVERY WEARER - PATENTED CURVED BAND DESIGN PREVENTS EARPLUGS FROM TOUCHING DIRTY OR CONTAMINATED SURFACES - MADE FROM A CLOSED CELL FOAM TO PREVENT DIRT BUILD-UP - LIGHTWEIGHT AND PORTABLE - CAN TAKE THEM OFF WHEN NOT NEEDED AND EASILY HANG AROUND NECK OR CLIP ONTO BELT - CERTIFIED SLC80 21DB/CLASS 3