Brilliantly colored plugs feature a nonferrous metal grommet, ensuring excellent visual and metal-scan detectability, making the Laser Trak® line particularly useful in process industries employing automated inspection technology. Low-pressure polyurethane foam gently expands to fit the wearer's ear canal. Contoured T shape simplifies insertion and removal. Corded/Banded: Yes; Cord/Band Color: Blue; Size Type: One Size Fits Most; Attenuation Rating: 32 dB.