Earplugs for Sleeping,Noise Reduction Soft Silicone Ear plugs with 7 Pairs Ear tips&One Connection Cord,Hearing Protection Reusable Earplugs for Sleeping,Concert,Work&Sound Reduction 25dB-30db MELPO liquid nitrogen

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10 different styles of commonly used flat washers and beveled washers with 6pcs brass screws

ADJUSTABLE HEIGHT: You can adjust the height between 57

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Earplugs for Sleeping,Noise Reduction Soft Silicone Ear plugs with 7 Pairs Ear tips&One Connection Cord,Hearing Protection Reusable Earplugs for Sleeping,Concert,Work&Sound Reduction 25dB-30db MELPO liquid nitrogenAbout this item Noise Reduction Earplugs: The Noise Reduction earplugs that reduce noisy voice level by up to 25dB 30dB,providing natural quiet sound quality. The Earplugs for sleeping wont irritate to your ears at loud sound scene. The hearing protection earplugs will provide some noise attenuation,but they wont make it completely impossible to hear sound keeping your ears safe from damaging sounds. Soft Silicone Earplugs: The Silicone Earplugs is