From the Manufacturer Laser Lite uncorded single-use earplugs are made of self-adjusting foam that expands to fit virtually every wearer. The contoured T-shape allows for easy insertion and fit. It"s smooth, soil-resistant skin prevents dirt build-up. Vibrant colors make protection visible. Pairs are individually packaged in a polybag. NRR 32. Product Description LL-1 Style: Uncorded, Pkg Poly Bag, Qty:200 pair per box This item features: -Vibrant colors make protection visible. -Self-adjusting polyurethane foam expands to fit virtually every wearer. -Contoured T-shape for easy insertion and wear. -Smooth, soil-resistant closed cell-foam skin prevents dirt build-up. -Noise Reduction Rate (NRR): 32 dB. -Maximum Attenuation @ Frequency: 45.800 dB @ 8000.000 Hz. -Body Material: Foam. -Color: Magenta/Yellow. -Style: Uncorded, Pkg Poly Bag, Qty:200 pair per box - Price is for 200 Pairs. -Style: Uncorded, Pkg Dispenser Box, 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.