For quick-draw action, the Uncle Mike's Size 00 Inside-the-Waistband Holster features a fold-over hook-and-loop retention strap that keeps your gun in place, while releasing quickly with your thumb. Made of 4 layers of ultrathin laminate for durability, this holster clips to most belt sizes and fits most 2" - 3" barrel small/medium double-action revolvers. Size 00.