3M Push-Ins earplugs with patented Grip Rings gently seal the earcanal to enhance fit. The flexible stem makes insertion and removal easy and helps keep the tips clean when the wearer's hands are dirty. Foam tips made of soft polyurethane foam. Push-to-fit design makes fitting hearing protection easy, with no roll-down required.We don't just sell hearing protection. We're dedicated to the success of your entire hearing conservation program. 3M E-A-R and PELTOR Hearing Protection Products are some of the most recognized on the market and are designed to provide protection, comfort, and ease of use.