Universal Version: Fits 9MM .40 .45 Caliber Magazines Single or Double Stack Mag. Adjust Freely: Turning three screws on the surface, the width of the magazine pouch can be adjusted freely. Belt Mag Holster: Only fit duty belts within 2.3 inches and adjust vertically, freely to adjust the angle within 360°. Maintenance Easy: Unlike leather or other holster materials, it can use cleaning cloth with soap and water to washing.