Thank you for viewing. Product Description Moldex Softies 6600 are high-performance foam earplugs with an NRR of 33, providing a comfortable fit. Ideal for those seeking better sleep or improved concentration. - Model Name: Moldex Softies 6600 - NRR: 33 - Type: Foam earplugs - Quantity: Set of 4 - Colors: Yellow, Orange, Green - How to use: Roll and insert - Class: ANSI S3.19-1974 Notes: Although new and unused, please refer to the images for the condition of the outer packaging. Please understand that this item is stored at home by a private individual before purchasing.