Made of a patented thermal-reactive foam (used by the NASA space program), these plugs have a smaller cell structure, feel smooth "to the touch", and react to the wearer's body temperature. The plugs start out firm enough to make roll-down and insertion easy. As the foam warms to the body temperature, it becomes softer and shapes to the individual's ear canal. This "shaping" allows the plugs to form an excellent and comfortable seal against noise.
Corded. Sold: 200 Pair.
Features:
- Most popular earplug in the world.
- Laboratory tested NRR 31dB.
- The E-A-R yellow color is your assurance of proven protection.
- Thermal Reactive Foam gets softer with wear.
Specification:
- Meets ANSI S3.19-1974 Standards