Rockets Reusable EarplugsAir bubble in the tip provides cushioned comfort. Easy grip handle. Easy insertion in any size ear canal. Pocket-Pak® carrying case for plug storage, slips easily into pocket. Washable and reusable. Bright blue detectable model is ideal for food processing use. Body Material: TPE; Color: Blue; Noise Reduction Rate (NRR): 27 dB; Quantity: 50 pair per box; Type: Metal Det. w/Cord; Weight: 0.04 lb.