Safety Survival Whistle - Emergency Running Whistles With Lanyard (2 Pack) - Extra Loud - Perfect For Hiking, Boating, Camping, Hunting, Biking & More - U.S. Veteran Owned CompanyOur whistles are made from a non-brittle plastic and can be heard from over a mile away We are a US Marine corps Veteran owned company and stand behind our products 110% L..