The first Mack's mouldable silicone earplugs was invented in 1962 and the original formula is still used today. The ultimate in earplug comfort, Mack's silicone putty moulds to the unique contours of any ear and provides a better fit and seal than custom-moulded ear plugs. Mack's mouldable silicone ..
Exposure to loud sounds from shop work, industrial use, motor sports, and shooting can lead to permanent hearing loss. In fact, a single exposure to dangerous noise levels can cause irreversible hearing loss and debilitating conditions like tinnitus (ringing in the ears). Mack’s Hi Viz luminescent, ..