These ear plugs offer the same great protection as our standard sized earplugs, but are designed with a slightly smaller diameter, providing comfort to those with smaller ear canals. Molded with super low-pressure, skinned and tapered foam to provide unmatched comfort and improved hygiene. Noise reduction rating (NRR) 29 decibels. For sleep, study, work, shooting sports, travel, power tools, loud events, etc.