TASCO introduced the patented heat-reactive Tri-Grip earplug in 2008 to the best end-user acceptance rate of any product in 30 years. Its acceptance rate has required TASCO to manufacture five versions of regular and small sizes; both available in metal detectable and non-metal detectable styles. Visit the company website for free samples. TASCO, (800) 343-2311, www.tascocorp.com.earplug