Peltor Optime 98 Personal Hearing ProtectorPivoting earcups for optimum fit. H9A Model, high protection design. Works with AO Tuffmaster® face protection system. Soft seal liquid/foam filled cushions for a better seal even with eyewear. Color: Yellow; Noise Reduction Rate (NRR): 25 dB; Quantity: 10 per case; Weight: 7 1/2 lb.