Description: High Efficiency Noise Reduction: These silicone earplugs are designed to effectively reduce environmental noise, allowing you to focus and enjoy tranquility in various environments.Comfortable Silicone Material: Reusable Washable Earplugs Made from comfortable silicone material that fits snugly in your ears for maximum comfort.Pack of 12: Each box contains 12 earplugs, enough to meet your long term usage needs.Waterproof Design: These earplugs are waterproof, making them suitable for swimming, bathing and other occasions to protect your ears from moisture.Ideal for Air Travel: Sound Blocking Ear Plugs suited for use on airplane to effectively blocking out unwanted noise. Size Chart: 7.4cmx6.5cmx1.6cm/2.91inchx2.56inchx0.63inch Package Includes: 1 BoxEar Plugs(include 12pcs) Note: Please allow slightly errors 1-2cm differences due to manual measurement.