The earplug is made of super silicone which makes them easy to insert, comfortable to wear, protecting ears against infections. Easily and quickly fitted to the exact shape of your ear. Defend your ears from inflammation, swimmer's ear and surfer's earwithout sacrificing your hearing or balance. Ergonomic shape fits the outer ear to keep water out of your ear canal without affecting your hearing in water so that you can be fully aware of your surroundings and enjoy swimming safely. Shape prevents the plug being inserted too far into the ear passage. Provide you a better and comfortable fit than common earplugs, help you away from loud and uncomfortable noises but still can hear the sound of alarm clocks. Delivery Quantity: 10set (20pcs) Package Contents: Only the above package content, other products are not included. Size: 3*2.5cm (Reminder: The size is measured manually, please allow 1-2 cm measurement error) color: blue (Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)