Moldex 6844 Pura-Fit® PlugStation® Earplug Dispensers, 250 Pairs/DispenserFeatures: 100% PVC-Free. Highest independently tested NRR 33. Tapered for easier insertion. Improved, softer foam for maximum comfort. Hygienically packaged in biodegradable paper pouches. Non-irritating, smooth surface. Longer length for easy fitting and removal. Look for the bright green color as a symbol of Moldex quality.