Taper Fit Corded Disposable Earplugs, Specially formulated polyurethane foam material offers excellent comfort and is non-allergenic. Tapered shape provides effective and comfortable fit. Longer length allows for quick and simple insertion and removal of earplug. Bright red colour and longer length combine to make the earplug more visible from distances making supervision easier. CSA Class A NRR 29. Save $100 when you buy a full case, Sold as 5 (Box/100), 500 pairs per case.