Made for the popular Smith and Wesson M 100-1 series handcuffs and designed to fit Glock 9/40 mags (May also fit other mags with the adjustment of the tension screws). This case has adjustable retention and is made to wear outside of the waistband (OWB). The case is light and rugged made out of .080 Kydex. You have the option to pick your belt attachment. All attachments fit up to a 2 inch duty or concealment belt. Designed to be worn on the left side (made for right handed gun toters), however can be worn on the right side. The magazines will fit in any direction.