Health and safety. The earplugs are made of environmentally friendly polyurethane and have been rigorously tested, non-toxic and harmless, so you can use them with confidence. The softness and good sound insulation make them an excellent partner for life. The soft foam earplugs are designed to be easily shaped and adjusted. These reusable earplugs can be reshaped to fit any ear shape, forming an airtight seal and providing optimal protection against noise and water. Easy to clean, can be washed directly. Noise Reduction. Can be used as noise-reducing sleeping earplugs, travel earplugs, soft noise reduction earplugs at work or entertainment, etc. Used to improve sleep, concentrate, protect hearing. Soft and comfortable. Our earplugs bounce slowly, it is enough for you to adjust the earplug and gently fill the ear canal. The earplugs are ultra-soft and low pressure, they do not cause any pain to the ear canal. Applicable occasions. The earplugs help at home, self-study classrooms, during the car, boat and plane trip, factories, construction site etc. The earplugs help to reduce noise and allow you to learn, rest, work, travel, entertain with less noise and more fun!