Snug Fit: With a newly developed 4-flange design, these universally sized, hi-vis earplugs have a washable ridged stem for better grip during insertion and removal; Suitable for extended wear & provides a secure fit with your hard hat & other safety gear. Noise Suppression: Reusable, comfortable, lightweight and easy to use, our corded ear plugs are a great choice in hearing protection; With a noise reduction rating of 27dB, they are a smart choice to maintain focus and keep distractions at a minimum. Corded: Made with a non-allergenic polymer material, these can be washed and reused, helping to reduce waste; The corded pairs reduce the chance of losing your earplugs between projects tapered corded ear plugs ensures optimum ear canal coverage. Packaging: Our corded earplugs are individually packed in pairs with 1 pair in a plastic storage case with a belt clip, making them easily portable; The plugs not only block out noise, but the convenient packaging also ensures hygiene protection. Certified: Ideal for professional use and various indoor & outdoor environments, and practical for shooting, sports, study, steel & hardware work, manufacturing, oil drilling etc.; Independently tested and certified to NRR 27 (ANSI S3.19) and CSA Class AL.