[SOFT, COMFORTABLE AND SAFE]: These headphones are made of non-toxic PU material, lightweight, dense, soft and tapered foam ensures all-day comfort and protection in various working environments. 45 seconds of slow rebound is enough for you to adjust the earbuds, gently fill the ear canal and allow the earbuds to seal gently and comfortably without pressure. [Hypoallergenic]: These earplugs high quality earmuffs are non-toxic, hypoallergenic and soft, wear them for a long time without pressure, pain, irritation or itching in your ears while providing you with the necessary noise reduction, they also protect sensitive ears. [Practical]: 60 pairs of earplugs are included in the package, use 2-3 times, enough for the whole family. These foam eartips can be used to replace the old ones or as a spare to protect your hearing for a long time. Noise Cancellation: The foam earbuds have a 38dB sponge, good at blocking out noise strong to protect hearing, block distractions while sleeping and help focus while studying. A hassle-free experience wherever you go. (Not completely soundproof) MULTIPLE USES: Recommended applications include studying, sleeping, shooting, flying, concerts, motorcycles, sporting events, fireworks, woodworking, vacuuming, lawn mowing, drilling and all noisy environments. [Easy to Carry]: Each set of headphones comes with a compact keychain travel case, convenient to carry and store anywhere. The screw-on seal provides hearing protection against moisture, dust and debris, keeping your headphones hygienic