The Laser Trak disposable Earplugs are also detectable. The comfortable design provides high attenuation in tandem with detectability. Made of bright and intensely visible colours for extra visibility, making them ideal in food processing environments. The non-ferrous metal is highly detectable by metal detection devices. Corded for extra safety and convenience, these Laser Trak Earplugs have a rating of EN352:2020 SNR 34. Supplied in a pack of 100.