CRESCENDO Ear Plugs for Construction Factory Work Ear Protectors Industry 20

---------------------------------------------------------------------- Ear protectors designed as protective equipment in noisy working environments such as machine shops, agriculture, roadworks and construction sites. Reduces noise level by 20dB. Safe for continuous use for 8 hours in environments up to 105dB. Ear plugs are available in two sizes (large and medium). The earplugs are washable and hygienic. Comes with a case that prevents loss and is convenient to carry.