Independently tested by a third-party organization. Noise Reduction Rating (NRR): 33dB. ・The shipping label will be affixed directly to the case in the photo. OPP tape will be applied to weaker areas such as the lid. Please specify any concerns in the comments before purchasing. ・Please refrain from purchasing if you are sensitive to imperfections, as the box may have dents, wrinkles, or other damage (photos available). ・The product consists of 200 individually packaged earplugs, as shown in the last photo. ・Please feel free to ask any questions or make any requests in the comments before purchasing. ・You can purchase immediately without commenting if you have no questions. Priority will be given to those who purchase, even if they are in the middle of a comment exchange. Moldex Goin' Green Disposable Earplugs Goin' Green® earplugs are ideal for noisy environments, providing a maximum Noise Reduction Rating (NRR) of 33dB. They have a unique green marble design but offer serious protection. Features: 100% PVC-free. Highest NRR of 33 in third-party testing. Made of very soft, low-pressure foam for comfort and a snug fit. Tapered shape for easy insertion and removal. Suitable for those with very small ear canals. Smooth, non-irritating surface finish. Original marble pattern, a symbol of Moldex quality. Earplugs, disposable earplugs, Moldex, MOLDEX, sleep, travel, noise, work site