Check the listing for details. Moldex 6604 Sparkplugs Tapered Earplugs Soft Foam Uncorded High NRR 33 Pairs. Color: Multi-color, Condition: New. Listed at 5.99 USD. Moldex 6604 Sparkplugs Tapered Polyurethane Earplugs Soft Foam Uncorded - PairsGreat for concerts, Nascar races, motor sports, racing, sleeping, loud machinery, swimming and more. SparkPlugs® Foam Ear Plugs Soft Comfortable Fit SparkPlugs® ear plugs are made of extra-soft, extra light foam. Their tapered shape fits easily in the ear canal, and seals gently and snugly without pressure. They’re so comfortable you’ll forget you’re wearing ear plugs. independently tested: NRR 33.SparkPlugs® ear plugs offer a high NRR 33, making them suitable for most noisy environments. So, while they look like fun, they provide serious protection.Random multi-colored swirl make for winning compliance to your hearing protection program. When it comes to comfort and compliance, nobody beats Moldex® to the finish line.Features100% PVC-Free. Highest independently tested NRR.Extra-soft, low-pressure foam for comfort and fit.Tapered shape for easy insertion and removal.Shaped to fit even very small ear canals.Non-irritating smooth surface.The bright green color is a trademark of Moldex-Metric, Inc. and also provides easy compliance checks.Moldex Sparkplugs series: 6604, 6654, 6615, 6684, 6645, 6644, 6605, 6880, 6881, 6703, 6833, 6933, 6704