Two 3" (7.6 cm) Webbing Straps Mounted Vertically on the back of the pocket as well as a single 9"(22.9 cm) Webbing Strap Mounted Vertically on the back of the Durable Cordura Nylon Pocket allow it to be mounted on the BC Waistband. Grommet Holes are also positioned on the webbing to allow the pocket to be directly mounted to the vest using screw fasteners (not included). Pocket allows you to add additional storage to your BCD, is easy to install, and has Zipper Top Loading and Mesh Bottom for Rapid Drainage. The Sport Pockets overall measurements are 6" x 9" x 2.5" (15.2 x 22.9 x 6.4 cm) and all edges are Taped and Sewn for added Strength and Durability.