Features: Customizable Fit: The unique push-to-fit design allows the earbud tip to expand and adapt to the shape of your ear canal, providing a secure, customizable fit and reducing discomfort compared to traditional earbuds. Extremely Soft and Comfortable: Made from soft, skin-friendly silicone, they provide a comfortable, lightweight fit suitable for extended wear. Excellent Noise Cancellation: The secure seal created by the expansion effectively blocks external noise, helping to maintain a quiet and productive environment for sleeping, studying, working, or traveling. Universal Design, Highly Adaptable: The innovative expansion mechanism fits a wide range of ear canal sizes and shapes, reducing the need for multiple size options. Constructed from high-quality silicone, they are easy to clean, reusable, and environmentally friendly. Easy Plug-and-Play: No need to pinch or force the earplugs; simply insert and gently press for a secure fit, making them user-friendly for adults and children. Inflatable earplugs, reusable noise reduction earplugs, flexible hearing protection, silicone material, suitable for sleeping, concentration, travel Material: Silicone