Noise-cancelling design: The earplugs are designed with sound-isolating and noise-cancelling features, which effectively reduce the sound level of external noise and help you relax more easily and get a deeper sleep. Robust material: They are made of high-quality silicone that is soft but at the same time robust. This means that they will not cause any irritation or discomfort to the skin even though they sit securely in your ears. After use, you can also wash the earplugs without damaging them, so that they can then be reused. Safe and reliable: The unique double-ring design keeps the earplugs securely in place without causing discomfort. They are also specially designed to be easily adjusted to fit your ear canal, ensuring a tight fit that will not fall out during sleep or activities. Specifications: Size: 2.05x1.5x1.6 cm Material: Silicone Package includes: 1 x Pair of Earplugs 4 x Alternative sizes 1 x Storage box Outstanding noise reduction Ergonomic design Easy to clean Soft silicone material