CAS318-1001 Features: -E-A-R Push-Ins combine the easy use and benefits of a reusable earplug with the cost and comfort advantages of a disposable earplug. Its all made possible with the innovative, simple-to-use design and the ultra-soft performance of a tip made of patented E-A-Rform foam, a derivative of the foam developed for NASA for use in their space shuttle seats.. -Simple to use design and ultra soft performance.Workers dont have to take the time to roll-down the foam tip.Quicker and easier to use.. -UNSPC CODE: 46181901. -Earplugs ear plug earplug hearing protection earplugs. Product Type: -Ear Plugs. Type I: -Ear Plugs. Corded: -Yes. Quantity: -Multipack.