Fun multi-colored foam earplugs are sure to put some spark in your hearing protection program. Each package has random colors to help increase compliance The tapered shape provides a snug fit while gently conforming to ear canal without pressure. Available corded or uncorded. NRR 33dB. Tested to ANSI S3.19-1974 standard. 200 pair per uncorded box. 100 pair per corded box. Mfg. #6604. Sold by the box.