Product category: earplugs Material: Silicone Noise reduction rate: 40 Function: noise reduction, waterproof Usage: plug-in Earplug colors: black, gray, army green, blue, yellow Size: see detailed drawing Specifications: 1. Double-layer cat tail design, powerful noise reduction. Wearing it all night will not distend your ears or fall off. 2. Made of silicone material, soft and comfortable. 3. You can use clean water or hand sanitizer for clarity, and can be used again after fully drying. Package Included: A pair of earplugs + plastic storage box Notes: As the monitor has different color differences, please refer to the actual product for the color of the product. Product sizes are measured manually, there are certain errors, please refer to the actual product.