These bags may look plain but they are very versatile. They are rectangular shaped to allow 3 different height variations. Flat, short side, and long side. They are filled with just enough plastic beads to make it easy to adjust the height needed by simply squeezing or relaxing your hold on the bag. The corner loop is easily attached to a carabiner for easy carry. The webbing that runs longways on one side and across the bag on the other side provides a simple way to attach the bag to your rifle by running the bipod legs through them. You can also carry it easily by running your hand through the straps. Features:? Made from 1000 Denier Cordura Nylon? Webbing is all 1" Milspec? Approximate size 7.5" x 1.5"? Entire bag is triple stitched for added strength.? All corners and webbing are triple stitched for added strength? Plastic beads on the inside, nothing to hold water? Light weight? Like all TAB GEAR, it has a lifetime warranty TAB Gear Black Rear Bag