E.A.R. detectable tracer earplugs. Earplugs detectable by metal detectors for maximum traceability, particularly well-suited for the food industry. Users are requested to confirm detectability with proprietary devices to ensure everything is functioning correctly. Made from a thermoplastic elastomer, pre-shaped, non-toxic, non-allergenic, and above all, easy to trace. A surgical ball bearing is permanently fitted into the stem of each earplug, making them detectable by metal detectors. They can be detected by most standard metal detectors, including those designed to reject metal combinations equal to or less than 2.78 mm. Lightweight design.