Colour:Black Rigorous ergonomic design, with skin-friendly soft silicone ear caps, to maintain the comfort of the whole day, 2 different ear caps, you can choose according to the size of the ear, the appropriate size and ear canal fit closely, the ear Also intimate. Usage: 1.Please clean your ears before using earplugs. 2.put the product accessories together, 3.soak the earplugs in hot water of about 70 degrees for about 30 seconds. 4.the thermoplastic earplugs are picked up with a spoon, 5.Put the earplugs into your ears for shaping. Scenes to be used : When you wear the earplugs in a high noise environment,you do not need to take them off yet you can still communicate conveniently,so that they can protect your ears all the time. When you night rest or noon break with noise around,they can reduce the noise and help you enjoy the quietness.Through the design of holes,your ears will not have the sense of dilatation caused by air trapping,enabling you to quickly get into the status of deep sleep so as to ensure that you have plenty of energy. When you wear them on the subway or bus,they can not only filter out noise,but also let you communicate normally with others.?Multiple Uses?: Multifunctional noise canceling ear plugs: Musicians ear plugs, ear protectors from the noise for work, noise reduction for sleeping, construction ear protection, motorcycle earbuds, concert earplugs, meditation, sound blocking, studying, focus, drummers, raves, sporting events, fitness classes, loud work environments, or anyone with noise sensitivity. ?SOFT AS A PILLOW TO PROTECT HEARING? you will hardly feel anything in your ear while wearing these sleep earplugs, No discomfort or pain, just undisturbed peace and quiet. ?Safe Material?: Our noise cancelling ear plugs are made of high-quality materials, with no stimulation, no pressure, and no pain or itching. You can keep it comfortable even if you wear it all night. ?EASY SHAPE SYSTEM?: Simply heat the thermoplastic molds in boiling water, let them cool for a bit, and shape them to your ears. That's it, and If you don't get the perfect fit the first time are the only custom earplugs that are re-moldable. ?CUSTOM MOLDED EARPLUGS?: Easily and quickly adjusted to the exact shape of your ear. This creates a perfectly fitting earplug that Even if you lie on your side or turn over, The sleeping ear plugs not easy to slip off. Breathable and comfortable, no pain to wear for a long time.