Disposable corded ear plugs

The disposable corded ear plugs are made of polyurethane foam and protects against noise. Characteristics: • hypoallergenic soft material; • with cord; • medium attenuation. Instructions of use: 1. With clean hands, roll the entire earplug into narrowest crease-free cylinder 2. Reach over head with free hand, pull ear up and back and insert earplug well inside ear canal. 3. Hold for 40 seconds, until plug fully expands in ear canal. 4. Proper fit while in a noisy environment and with ear plugs inserted, cup both hands over years and release. The earplugs should be blocking enough noise so that covering them with your hands should not result a significant difference.