Feature:1. Wide Application: These sleeping ear plugs are ideal for sleeping, woodworking, snoring, studying, traveling, concerts, rackety activities and more. These earplugs won't block out all noise, but they will reduce the noise to a safe level.2. Slow Rebound: These noise cancelling ear plugs adopt slow rebound sponge that can significantly reduce sleep noise. Super soft sponge ensures super low pressure, easy to wear and suitable for most people.3. For Most Ear Size: These loop ear plugs feature great malleability and expandability so that they can suit for most ear canal sizes.4. 30 Pieces: You will receive 30 pieces of sleeping ear plugs in portable size. The carrying case can be easily put in pocket, bag or briefcase.5. Ideal Gift: These sleeping ear plugs are easy to use, ideal gift for your friends and family.Specification:Item Type: Sleeping Ear PlugsMaterial: Slow Rebound SpongeProduct Size: Approx. 25 x 13mm / 0.98 x 0.51in ( Manual Measurement, Slight Error May Exist )Weight: Approx. 34g / 1.20ozPackage List:30 xSleeping Ear Plugs