Basically there are six chambers. There are two small shocks facing up, two small shocks facing down, and two reservoirs. The shock body kind of floats in the middle since it's gas charged. What it does is allow a 14-inch travel shock in a space where typically only a 9 or 10 inch shock would fit. More wheel travel in a smaller space. True that the rectangle shock body is big but they seemed to fit fine on the front and rear of this lifted JK. Keep an eye out for these to hit the market. They are perfect for anyone trying to get more wheel travel while keeping lift heights low.