SmartFit Reusable EarplugConforming Material Technology™ adapts to the shape of the surrounding ear canal when in your ear, and returns the earplug to its original shape when removed. Delivers superior comfort and a truly individual fit. Simplifies inventory control - a single product can fit almost every wearer. Process Industry style. Body Material: TPE Molded; Color: Orange; Noise Reduction Rate (NRR): 25 dB; Packing Type: Paper Bag; Quantity: 100 pair per box; Type: White Cotton Cord.