Woodland Olive Green Black Military Blood Type ABO Positive Velcro Hook Patch<br /><br />CHOOSE STYLE :<br />No.1: A  Style<br />No.2: B Style<br />No.3: O Style<br /><br />Features:<br />Size: 2 x 5.1cm<br />Backing: Velcro<br /><br />Description: This i