3M EAR[TM] Ultra Fit Earplugs 340-4004 with Cord 340-4004 1 Pair

Catalog number: 340-4004 Features: ●Hygienic as you can hold the handle and insert it into your ear, and it can be washed and reused. ●Three-stage flange shape fits your ear. Uses: ●For general work, polishing work, and welding work. Specifications: ●Cord: Yes (640 mm) ●Size: Free ●NRR value (dB): 25 ●NRR value: 25 dB ●Sound insulation performance based on ANSI S3.19-1974 ●Three-stage flange shape Material/Finish: ●Earplug body: Thermoplastic elastomer (TPR)