Army CPL Rank OCP Patch Option With Velcro Back For Hook Fastener Lightened 3-Tone Pattern Color (New Regulation) 2 Inches x 2 Inches Made for official U.S. Army specifications for wear on the new Army Combat Uniforms. Made in the U.S.A. Please check the Return Policy, Pick up at the Kim’s #1 Sewing & Dry Cleaning What is a Hook Fastener with Velcro? A hook fastener or hook and loop is the fastening system which uses two sides of material. The hook portion is the rough and scratchy like side and the loop is the softer fuzzier side. When placing the two sections together, the hook and the loop fabric attach to each other creating a bond, keeping the name tape in place during any activity. But not so strong that the name tape (or any other patch) cannot be removed as needed.   Army CPL Rank OCP Patch Rank patches are essential to completing your uniform. Sewn to military specifications, the Kims #1 rank patch is Army-approved for the Scorpion Operational Camouflage Pattern (OCP). Sewn with regulation black thread, it will match your ACU while simply and effectively communicating the proper insignia. Securing to your uniform with a hook field, there’s no alteration required and it’s sure to remain firmly in place.