AirSoft® Reusable Earplug, Thermoplastic Elastomer, Blue, Corded ORS NASCO Designed for aggressive performance on Designed for aggressive performance on tough grinding applications Durable high impact case with non slip rubber stands up to job site demands Protective full tape blade Mylar® coating and added BladeArmor® coating at the hook extends tape life against abrasion and heavy use Easy to read measurements with large font numbers Standard stud markers tapered shape fits better in the ear canal Firm stem facilitates easy insertion and removal Four flange profile creates better seal in the ear canal Less pressure in the ear canal eliminates that “plugged up” feeling Advanced air pocket design features internal noise blocking fins Rounded flanges