Voodoo Tactical Embroidered Blood Type Tags w/ Velcro And Metal Clip B- Black Letters Olive Drab Webbing. With A Hook And Loop Strap And A Quick Release Snap Hook These Blood Typ Tags Can Go Anywhere You Do. Clip Them To Your Pack Vest Jacket Or Pants. Carry Them On Or Off Duty. They Just Might Save Your Life Measures 4.5 Overall Package Contents: Voodoo Tactical Embroidered Blood Type Tags O- Voodoo Tactical 20-9725004000: Embroidered Blood Type Tags w/ Velcro And Metal Clip B- Black Letters Olive Drab Webbing