Features Flanged ear plugs have multiple, tapered fins that flex for a comfortable, yet snug fit in your ear canal. The fins also create pockets of air to help block out noise. Noise Reduction Rating / 25 dB Earplug Shape / Flanged Insertion Method / Push-In Reusability / Reusable Cord Options / Corded Earplug Size / M Earplug Material / Elastomeric Polymer Earplug Packaging / Bulk Bag, Unwrapped Earplug Pair Pack Type / Plastic Bag Electrically Insulated / Yes Band Color / Blue Series / E-A-R(TM) UltraFit(TM) Cord Material / Vinyl Band Material / Vinyl Cord Color / Blue Standards / ANSI/ASA S12.71-2018 Pairs per Package / 100 Earplug Color / Yellow Metal Detectable / No