NOISE CANCELLING EARPLUGS: these noise-canceling silicone earplugs are a great choice for study, swimming, sleeping, working, and general hearing protection in noisy environments. With the standard grade, which is suitable for both swimming and sleeping. COMFORTABLE, MOLDABLE & EASY TO USE: Made of high-grade silicone material, which is BPA free, reusable, and hypoallergenic. Soft enough to be molded. Mold them to your specific ear. Use the as big or small piece as needed. GREAT FOR SIDE SLEEPERS: No long ends sticking out makes it very comfortable for sleeping on your side. These earplugs are very reliable, as they will not fall out of the ears. UNIVERSAL USAGE: These silicone earplugs can easily block all types of noise. The earplugs for sleeping and swimming are easy to carry and portable in your backpack or even pocket. Ready to use. They are the best for factories and commercial areas, construction sites, flying and travel, sleeping, swimming and other watersports, concerts and live music, and they are also great for many other activities. FOR ALL EAR SIZES: Silicone earplugs for sleeping are designed to fit any ear size. You can cut it into two parts or even more parts to fit the ear sizes. Waterproof design makes it can be used as swimming plugs for adults, as well as for children.