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60 pairs of high quality earplugs in black colour. Made of comfortable low pressure foam, slow release, gently fills the ear canal and creates a secure seal for excellent hearing protection in noisy workplaces and workplaces. High noise reduction (NRR) of 36dB, effectively protects hearing in noisy events or creating a quiet environment for sleeping. Ideal for reducing noise when sleeping, studying, working, traveling, concerts, relaxing, motorcycling, hunting and noisy events, etc. › See more product details; Product description Product description Noise pollution is the disturbing noise with a harmful effect on the activity of human or animal life. The source of outside noise worldwide is mainly caused by machinery and transport systems, motor vehicle engines and trains. High noise levels can contribute to health problems. Our high quality earplugs provide you with a noise reducing solution to protect your ears and hearing. User manual (English language not guaranteed). English language not guaranteed). 1. Roll (do not press) earplugs into a very thin tube. 2. Simply insert into the inner ear canal. 3. Hold it in place for about 20 seconds until the earplugs expand. Tips: - Long time in the air, earplugs become hard and even lose memory. - Please replace a new pair after every 15 days. Directions 1. Roll (do not press) the earplugs into a very thin tube. 2. Simply insert them into the inner ear canal. 3. Hold them in place for about 20 seconds until the earplugs expand.; Product description Product description Noise pollution is the disturbing noise with a harmful effect on the activity of human or animal life. The source of outside noise worldwide is mainly caused by machinery and transport systems, motor vehicle engines and trains. High noise levels can contribute to health problems. Our high quality earplugs provide you with a noise reducing solution to protect your ears and hearing. User manual (English language not guaranteed). English language not guaranteed). 1. Roll (do not press) earplugs into a very thin tube. 2. Simply insert into the inner ear canal. 3. Hold it in place for about 20 seconds until the earplugs expand. Tips: - Long time in the air, earplugs become hard and even lose memory. - Please replace a new pair after every 15 days. Directions 1. Roll (do not press) the earplugs into a very thin tube. 2. Simply insert them into the inner ear canal. 3. Hold them in place for about 20 seconds until the earplugs expand.; Product description Noise pollution is the disturbing noise with a harmful effect on the activity of human or animal life. The source of outside noise worldwide is mainly caused by machinery and transport systems, motor vehicle engines and trains. High noise levels can contribute to health problems. Our high quality earplugs provide you with a noise reducing solution to protect your ears and hearing. User manual (English language not guaranteed). English language not guaranteed). 1. Roll (do not press) earplugs into a very thin tube. 2. Simply insert into the inner ear canal. 3. Hold it in place for about 20 seconds until the earplugs expand. Tips: - Long time in the air, earplugs become hard and even lose memory. - Please replace a new pair after every 15 days. Directions 1. Roll (do not press) the earplugs into a very thin tube. 2. Simply insert them into the inner ear canal. 3. Hold them in place for about 20 seconds until the earplugs expand.