Moldex SparkPlugs Extra-soft, Low-pressure foam for comfort and fit with a tapered shape for easy insertion and removal;So comfortable you'll forget you're wearing ear plugs!;Highest independently tested NRR (35db) making them suitable for most noisy environments. So, while they look like fun, they provide serious protection;Non-irritating smooth surface, 100% PVC-Free;Shaped to fit even very small ear canalsMoldex