Preshaped Foam Ear Plugs 200 Pair/Box Color Orange Smooth, soil-resistant skin prevents dirt build-up Polyurethane foam enhances comfort, especially for long-term wear MAX Ear Plugs (NRR 33) by Howard Leight are pre-shaped foam and feature a smooth outer skin for maximum user comfort. The NRR33 rating makes the MAX the best-selling, highest-rated disposable ear plug in the U.S. The smooth, soil-resistant skin helps prevent dirt from penetrating the surface prior to insertion. Attenuation tested in accordance with ANSI S3.19-1974. NRR 33 *Coral color. Uncorded. Packed in poly bags. 200 Pair per box.