MSA Safety Works SW10151070 Expandable Foam Ear Plugs, Box/200, 32 DBHighlights: Type: Low Pressure Low pressure plugs for added comfort Expandable foam fits wide range of ear canal sizes Body heat sensitive foam makes insertion easier Comes with dispenser box for added convenience High Noise Reduction Rating (NRR 32 DB) Used in mowing trimming lawn, power tool use, traffic and office noise or sleeping in noisy rooms Box 200