Uncle mikes kydex double mag case gives your magazines the same protection as your firearm.The internal tensioning device is for security and it fits belt loops up to 1 3/4" or can be clipped over a waistband. Features and Specifications: Shell Count: None Type: Mag/Cuff Pouch Color: Black Material: Kydex Size: Fits Belt Loops up to 1.75" Model: Double Magazine Pouch Finish: Smooth Model Fit: 9mm/40 Cal Mount Type: Belt Clip