Features:Up to -40dB noise cancalling level, effectively filter noises and reduce noise damage to hearing.?Earplugs are easy to roll down for quick and easy fitting.Tapered design comfortably fits the ear canals.Skin-friendly silicone material, non-toxic and harmless, safe to use. Effectively reduce pressure on the ear canal, suitable for a variety of different ear canal shapes, long time wearing without causing ear discomfort.Isolate noise around you and create a good sleep environment. Focus on your work and improve your working productivity. Wear noise-canceling earplugs when you travel to save energy and give you a quiet and comfortable travel experience.Specification:Name: Ear PlugBrand: Bluedio?Model: NE?Color: WhiteMaterial: Silicone?Ear plug size: 2.45 * 1.9 * 1.6cm /0.96 * 0.75 * 0.63inStorage case size: 4.5 * 2.3 * 2.2cm /1.77 * 0.91 * 0.87inPacking list:1 * Pair of ear plugs ?1 * Storage case