TWXpert® Foam Earplugs are the most effective noise reduction earplugs.They are rolled into a tightly compressed cylinder and inserted into the ear canal.They provide an optimal expansion recovery time for a custom, uniform fit on the ear canal.Foam material for comfortable use.Great Protection for all uses.Protects hearing with a 32dB NRR.Tapered shape adapts to any ear.Tested in accordance with ANSI & CE.Each pair comes on a sealed bag.Disposable.Size: OSFA.