3M E-A-R™ Classic™ Roll Down Earplugs PP-01-002 are made from a soft energy absorbing polymer foam. These noise-reducing earplugs are ideal for providing comfortable and reliable hearing protection throughout the day. Use E-A-R Earplugs anywhere where noise can be a problem, whether you're at work or enjoying a hobby. Box Quantity: 250 Pairs. SNR 28dB. Trademarked soft energy absorbing polymer foam. Get an excellent fit with a firm material featuring a slower recovery time. A specially-designed cylindrical shape that fits most ear canals and provides a reliable seal. Increase comfort and wearability and reduce in-ear pressure, with low equilibrium pressure. The exposed cell surface texture resists movement and helps to maintain an effective seal. Excellent sound attenuation characteristics. Supplied in resealable pillow-packs for ease of use. Ideal for comfortable use in hot and humid conditions, with additional sweat and humidity resistance. Also available as corded earplugs.