Safe, reusable earplugs for sleeping made from high-quality silicone and ABS. Non-toxic, odorless, healthy and environmentally friendly. Outer ring and earplugs are removable, easy to clean, and durable. Suitable for sleeping, studying, working, commuting, travelling, or using in cafes to maintain peace. Noise reduction and protection: SNR of 30dB reduces ambient noise effectively while still allowing normal conversation with people nearby. This provides hearing protection without creating complete silence. Color and style: Available in Black, White, Green, Red, and Blue. Black or White are classic and versatile, and the pair also functions as a fashion item beyond hearing protection. Easy to use and maintain: Unlike normal foam earplugs, these silicone plugs require no pressing or waiting. Gently insert into the ears and twist to adjust to the perfect angle. Soft, skin-friendly, and comfortable. They are waterproof for broader use. Notes: Provides hearing protection without guaranteeing total silence. Outer ring and earplugs are removable for cleaning and longevity.