Put some fun in your hearing protection program with Goin' Green Earplugs. They are the perfect way to let your employees show their love for NASCAR racing. They have a hi-viz green swirled color for winning compliance; and when it comes to comfort, nothing beats Goin' Green Earplugs to the finish line. They measure at NRR 33dB, making them the highest independently tested NRR available. Their extra-soft, extra-light foam and tapered design seal gently and snugly without pressure, while the outer surface is smooth, so it doesn't irritate the ear canal. Independently tested to ANSI S3.19-1974. 100% PVC-free. The bright green color is a trademark of Moldex-Metric, Inc. The random color patterns are a registered trademark of Moldex-Metric, Inc.