The Quiet® earplug is a patented, "no-roll" design and is easy to handle and fit. The contoured shape comfortably matches the contours of the ear canal. It has a built-in insertion stream and a NRR rating of 26. Packaged per pair in a flip-top box. The earplugs are packaged 100 Pairs/Box, 10 Boxes/Case. The refills are packaged 200 Pairs/Box, 10 Boxes/Case.