[PROFESSIONAL NOISE-BLOCKING]With a high noise reduction SNR of 37dB and NRR of 32dB, ear plugs can reduce noise interference well. Ear plugs could block out loud noises for hearing protection. [SOFT PU FOAM MATERIAL]Bullet ear plugs are made of super soft PU foam, which is comfortable and skin-friendly. 60s slow rebound making them easier to wear, allow gently fill the ear canal without pressure, make long wear more comfortable. Ear plugs are shaped for an ultimate fit and reduce the decibel levels of common noises, make your world a little quieter. [SAFETY]These earplugs are non-toxic and non-hazardous, made of skin-friendly and environmentally friendly materials, meet certification, no irritating odor. [EASY TO CARRY]The package includes 20 pair (40 earplugsOrange) and enough for your whole family to use. Each pair of industrial use bullet earplugs with random colour cord55cm is individually wrapped for good sanitation. The earplugs threaded with PVC strings, are easier to find, more comfortable and safer. Provide user comfort and hygiene. [MULTIPURPOSE EARPLUGS]Soft PU foam bullet earplugs suitable for sleeping, automotive, construction, mining, woodworking, vacuuming, mowing, manufacturing and all noisy environments. Provide Better concentration with less noise.