Burton Technologies EPB-4S-BLACK Acoustibuds Flexible Sport Tips for EarPods, earphones and Bluetooth, 2 Pair, Size 4 (single size only), BLACK Flush fitting tips fit over select Apple Ear Pods, Earphones and Bluetooth headsets Flexible Fins keep earphones from falling out during workouts Sound isolation and internal channeling improve acoustics and bass delivery Made in USA with Dow Corning silicone for durability and comfort Tips only; earphones not included. Wash with soap and water after use.