The waterproof earplugs have strong sound insulation, good tool when you sleeping, working, study, racing, etc. It is perfect for prevent water entering your ears when swimming. It can keep your ear plugs clean and makes it easy to take them to the beach, pool, camp, or water park. Feature - Color: Blue. - Material: Silicone. - Size: 1.5 x 3cm. - It can prevent swimmer’s ear and ear by blocking water from entering the ears, keeping ears warm and preventing the of water of the ear. - Diving earplugs is made of , and manufactured to the higher industry standards. - This swimming earplugs is made from environmental silicone and spiral waterproof materials. It is very comfortable to wear. - Helps prevent outer ear and inner ear , and thermal reaction. - Easily and quickly fitted to the exact shape of your ear. Warm Tip: Dear buyer, due to lighting effect, monitor’s brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you! Package list: 5 x Pairs of Waterproof Earplugs