Noise Cancelling: The earplugs are reusable, long-lasting hearing protection made of soft silicone. They reduce most noise levels and help you immerse yourself in a bubble. They have a signal-to-noise ratio (SNR) of 26 dB and are available in six stylish colors. Optimal Comfort: These noise-canceling earplugs are available in four different sizes; you can always find the perfect fit. The unique round shape of the earplugs fits perfectly in your ears, making them an all-in-one practical and stylish accessory. Versatility: The earplugs are extremely versatile and can provide you with comprehensive protection from noisy environments in many situations. They are perfect for sleeping and can help you relax and focus while studying, working, or reading. And of course, they are indispensable when you're traveling or taking public transportation to work. Contents: 1 pair of earplugs, 1 case