【Noise Reduction Earplugs 30-40dB】Versatile earplugs perfect for sleep, work, and music concerts. Made with soft silicone and lightweight aluminum alloy, they fit gently in the ear. Available in 4 sizes (S, M, L, XS) to fit any ear. Reusable and environmentally friendly. 【Comfortable to Use】Dual-core filter allows for adjustable noise reduction. Designed to fit the auricle, comfortable for long-term use. Comes with a convenient storage box, perfect for travel and everyday use. 【Stylish Design】Available in black, white, and green, with customization options. Simple and sophisticated appearance, ideal for gifts. 【Easy Care】Washable with water, simply dry with a hairdryer. The internal metal ring is rust-resistant, ensuring long-lasting use. 【Reliable Quality】Delivered in a high-quality color box. A product that will satisfy both earplug beginners and long-time users. Keywords: Earplugs, Noise Reduction, Sleep Earplugs, Noise Prevention, Dual Core, Auricle Fit, Reusable, Washable Earplugs, Soundproofing Performance, Lightweight Aluminum