3M Ear Plugs 1100 are slow recovery polyurethane foam ear plugs with a tapered design. They are disposable, very lightweight and reduce noise levels by up to 35 dB. For high level hearing protection and all day comfort. The soft and exceptionally comfortable ear plugs are made from slow recovery, soft, hypoallergenic polyurethane foam. Their tapered design helps provide a good fit to most ears, and that they are easy to use and handle. They are easy to roll down and become even softer with body temperature, durability and comfortable. The earplugs come in a handy pack with pairs individually wrapped in flowpack.