CAS311-1127 / 311-1127 EARPLUG EXPRESS POD METAL Express® Metal-Detectable Pod Plugs With no rolling down needed, E-A-R® Express® Metal-Detectable Pod Plugs are very easy to insert. The patented InstaSeal® system assures a great fit while using less foam for a more comfortable feel. They deliver excellent protection with an NRR of 25 and come one corded pair in a pillow pack. Packaged 100 pair per box. Sold per box.