The 1100 is a pair of uncorded ear plugs made from soft, hypoallergenic polyurethane foam material, designed to provide maximum comfort and reduce pressure inside the ear. They feature a smooth, dirt-resistant surface that helps improve hygiene. The tapered design ensures a good fit for most ear canals and makes the plugs easier to use. These ear plugs offer high durability and comfort, making them suitable for safety and noise reduction applications.