PVC 2x3 Tactical Police Law Enforcement Thin Blue Line United States Flag (hook/loop) Patch highest quality around, Measures 2x3" with hook-backing. The Thin Blue Line is a symbol in use in the United States and Canada by law enforcement officers and others Hook back ready to throw on your favorite hat, bag, or jacket. Support our country by wearing this AMERICAN MADE, Flag PVC Morale Patch. Fits great with any standard, tactical hat.