[Kinglucky Worry-free Service] Our aim is to ensure your shopping experience is worry-free and unmatched. Should your earplugs encounter any issues during normal use, you can confidently rely on our support. The professional customer service team at Kinglucky provides round-the-clock online assistance, backed by up to 1 years of warranty service. [Small & Invisible, Carry & Use Anywhere] The ear plugs are only 0.75*0.16 inches in size, making them invisible when worn and reducing noise without compromising appearance. The included portable storage box allows for easy storage and convenient carrying, making them perfect for use in office environments, concerts, motorcycles, shooting, or mowing. Take them with you wherever you go to meet your needs. [Perfect for Sleep, Focus, and Beyond] These earplugs deliver instant noise reduction and protection across various scenarios, including sleep, focus, relaxation, travel, commuting, and general noise sensitivity. Designed for durability and easy maintenance, Kinglucky ear plugs are built to last and keep you comfortable in any situation. [Multiple Sizes, Choose the Perfect fit for You] When worn correctly, these earplugs do not stick out of your ears. They come in three sizes (S, M, L). If your ears hurt, it is best to choose a smaller size. If the earplugs do not reduce sound sufficiently or fall out, try a larger size. This way, whether your ears are big or small, you can find the most suitable solution. Say goodbye to the trouble of finding the right earplugs or experiencing discomfort. [Soft & Flexible, Comfortable to Wear] These ear plugs for sleeping are made from liquid silicone, making them skin-friendly and soft. You can wear them for extended periods without discomfort. They are especially suitable for use while sleeping, including side sleeping, allowing you to enjoy a comfortable night's sleep. Additionally, the material is RoHS certified, ensuring it is healthy and safe for use. Your children can also use them with confidence. [Powerful noise reduction] These ear plugs utilize innovative physical isolation and precise acoustic filtering technology to create an unparalleled sense of tranquility. Their unique ring design allows essential sounds to pass through while reducing harsh high volumes, providing a more balanced listening experience. Ideal for noisy environments like concerts or city traffic, they let you enjoy sound without overwhelming your ears.