LESSEN THE NOISE, LESS INTERRUPTIONS - The ear plugs is capable to cancel up to 33 dB of noise and quiet the sound to a comfortable level. They come with 2 different sizes (SL). A proper size forms a seal between your ear canal and the plug and do a good job of muffling noise from the outside. Just make sure you get them to form a seal in your ear canal. Otherwise sound leaks inALL-DAY COMFORT - The ergonomic design of ear protection will not go into your ear canal so they are virtually unnoticeable while wearing. Comfortable for side sleepers as well. The earplugs allow you lay on your side without putting so much pressure on your earsENVIRONMENTALLY FAVOURABLE OPTION - The reusable ear plugs which are made of medical-grade silicone. They are soft and flexible and won't result in any pain even for long time wearingFIND YOUR IDEAL FIT - 2 sizes are included in the case - standard and small ear plugs. Suitable for men, women or kidsEASY TO CARRY - The ear plugs with pocket-size case is lightweight and easy to take anywhere. It's a must-have for musicians, airplane pressure discomfort, hunting, festival, etc. Furthermore, the mirror design is also very convenient when you are wearing earplugs