This is a Brand New U.S.G.I. Genuine Military Issue MOLLE II Pistolman Set. The set includes one tactical thigh holder extender and four magazine pouches. Color is Universal Camouflage Style 4195.

The MOLLE II (Modular Light-weight Load-carrying Equipment) system is designed with loops sewn into the thigh extender and pouches to allow attachment of MOLLE II compatible equipment. The thigh extender can carry a variety of items, such as a pistol holster, knife, magazines, etc. Shown in the photo is a M9 knife for illustration (M9 knife not included). 

The magazine pouches can hold standard 9mm magazines and up to 45 cal double-stack mags. The inside of the pouches are approximately 1- 5/8 x 1-1/8 x 4 inches. The mag can extend about 1-1/4 inch above the pouch and still close effectively.