These Moldex 6632 Meteors are sized small for smaller ear canals. The unique contour follows the shape of your ear canal for a comfortable fit without pressure points. The special shape eliminates pressure at the smallest diameter of the ear canal for a comfortable all day fit. The Meteors are designed with an extra large base so they are easy to grip and hold on to for quick fitting and removal. Use the handy cord to wear them around the neck when not in use to prevent them from being lost. A bright green color allows them to be easily seen when checking for safety compliance. These earplugs are independently tested to be NRR 28 for quality hearing protection in most noisy areas.