Effectively reduce background noise by up to 22 decibels (SNR) High visibility colouring allows easy and quick compliance checks. Extra-soft, extra-light foam for superior all-day comfort. Tapered shape for easy insertion and removal. Shaped to fit even very small ear canals. Non-irritating smooth surface, 100% PVC-Free. EN 352-2:2002 tested & certified. Box of 200 pairs