Description: brand new and high quality Feature: The use of high-quality silicone, soft and flexible, effectively fit the contours. 3-layer sound insulation, well protect your ears, suitable for sleeping use. Not only can effectively reduce the noise but also soft and comfortable to wear. Enhanced the support of the ears, enhance the wearing tightness and comfort, ensure that the headset is not easy to fall off during exercise! Can be washed and used repeatedly, both waterproof and durable. Suitable for professional musicians, living concerts, motor sports, construction sites, comfortable sleep, etc. Specifications: Item Type: Ear Plugs Material: Silicone Size: 20cm/7.8in Color: for Grey, Green, Black(Optional) Noise: 40db Quantity: 1 Pair Note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 Pair x Ear Plugs (other accessories demo in the picture are not included!)