Set Contents: Earplugs x 1 set Replacement caps x 3 sizes Storage case x 1 The loop shape fits easily in the ear, making it less likely to fall out. It reduces surrounding noise, making it a recommended item for those who want to take a nap while traveling on night buses, bullet trains, airplanes, cars, etc. Thank you for viewing! Instant purchase OK!! We are committed to shipping quickly (^^) We have various other items for sale, so please take a look ✨ #na goods 34.45