Choose E-A-R UltraFit Earplugs if you're looking for an excellent hearing-protection option that provides improved hygiene performance & a wonderfully comfortable wearing experience. Triple-flange design contours itself to a wide variety of ear-canal shapes & sizes to ensure a more effective noise-blocking seal, making them more practical & more versatile, too. Almost anyone can find a snug, comfortable fit with a pair of UtraFit. Flexi-fit stem & no-roll tips allow the wearer to insert the plugs without touching the earplugs' tips, keeping the tips & the user's ears clean, even when the user's fingers or gloves aren't. All UltraFit Earplugs are compatible with the 3M E-A-Rfit Dual-Ear Validation System. E-A-Rfit provides an accurate quantitative assessment of exactly how much noise-reduction a hearing protector provides to any given worker. Triple-flange tips are washable & reusable (handwash with soap & water only). Metal-Detectable Plugs & Cord-Designed to be easily picked up by food-stream metal-detecting machines employed by food-manufacturing facilities. Corded / Cordless Pair: Corded; Shape: Round Triple-Flange; Material(s): ABS Plastic; Elastomeric Polymer; Steel; Vinyl; Noise Reduction Rate (NRR): 25 dB.