Noise Cancelling Comfortable 3 Layer Earplugs 40db Ear Plugs for Sleep/Work Features: High Noise Reduction: Offers up to 40dB sound blocking for peaceful sleep or work. Ergonomic Design: Three-layer construction for a comfortable fit in the ear. Reusable & Easy to Clean: Made from soft, BPA-free silicone, can be washed and reused. Portable Case Included: Comes with a protective storage case for convenience. Specifications: Name: Professional Noise-Canceling Earplugs Material: Nano-Silicone Dimensions: 17mm × 14mm MPN: 3 Layer Earplugs Suitable For: Airplane, Concerts, Construction Noise, Sleeping Package includes: 1 Pair Noise-Canceling Earplugs Notes: 1. Due to manual measurement, please allow 1-3mm tolerance. Ensure you are comfortable with this before ordering. 2. Due to lighting and monitor differences, photos may not accurately reflect the actual product color. Please verify details before ordering. Thank you!