LPF-1 Style: Uncorded, Pkg Poly Bag, Qty:200 pair per box This item features: -Low pressure polyurethane foam expands gently for comfortable long-term wear. -Contoured T-shape for easy insertion and wear. -Smooth, soil- closed cell-foam skin prevents dirt build-up. -Noise Reduction Rate (NRR): 30 dB. -Maximum Attenuation @ Frequency: 45.200 dB @ 8000.000 Hz. -Body Material: Foam. -Color: Green. -Style: Uncorded, Pkg Poly Bag, Qty:200 pair per box - Price is for 1 Pair. -Style: Uncorded, Pkg Poly Bag, Qty:500 pair per box - Price is for 1 Pair. -Style: Corded, Pkg Poly Bag, Qty:100 pair per box - Price is for 1 Pair. -Style: Uncorded, Pkg Bag, Qty:200 pair per box - Price is for 200 Pairs. Testing and approvals: -ANSI.