3M EAR[TM] Push-in earplugs 318-4001 with string 318-4001 1 pair

Catalog number: 318-4001 Features: ●The foam can be inserted into the ear without being crushed. ●Easy to put on and take off while wearing gloves, so it is less likely to get dirty. ●Easy to put on and take off even for first-time users. ●Designed so that the earplug body does not come into direct contact with the earplug body and can be inserted into the ear. Specifications: ●Cord: Yes (645mm) ●Size: Free ●NRR value (dB): 31 ●NRR value: 31dB ●Sound insulation performance based on ANSI S3.19-1974 Materials/Finish: ●Earplug body: Polyurethane (PUR) ●Pattern/Cord: Polyvinyl chloride (PVC)