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. Moulded 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. (7 pairs) Includes free aluminium case.