The FP8000rd/100 Foam Earplugs by Radians Inc. are beautifully designed with a tapered shape that naturally conforms to the shape of your ear canal, offering the most optimal fit and sealing capability.Their smooth, shiny surface effectively repels dirt, helping to maintain the cleanliness of your earplugs. With the low pressure, self-adjusting foam, these earplugs provide long lasting comfort and ensure quick recovery time after use.