Soft, comfortable finish for day long use. Tapered end for added comfort. Slow expanding, polyurethane foam. Fits majority of ear canals. Evenly distributed pressure. Compatible with other PPE. Non-irritating. Excellent levels of protection at SNR 36dB. CE Approved to EN 352-2. (SNR 36dB) Supplied in Dispenser Refill Boxes of 500 Pairs.