CAS311-1101 / 311-1101 EARPLUG EAR CLASSIC W/CORD IN Classic® Earplugs Soft polymer foam expands in ear for comfortable, custom fit. Bright yellow color makes compliance easy. Available in pillow pack uncorded and polybag corded and uncorded, 200 pair per box. Classic® plugs are also available in a convenient 5 pair box of uncorded plugs. The compact box makes it easy for employees to carry a weeks supply in their pocket. Box is pulpable, recyclable and biodegradable. NRR 29. Sold per box. Made in USA.