My set-up is 39" long and consists of a 18" extension with welded on tabs for chains, a Ready Brake and ball receiver. I use it to flat tow behind my truck camper. I have a super hitch and use the bottom receiver hole. The turn buckles and the wobble stoppers keep everything very solid. The chain loops are used to attach my coiled tow cables. I have a break-away set-up where the towed's brakes are applied and locked if separated from my truck. I attached a light on my dash that lights up when the towed's brakes are applied enough to light it's brake lights. I set up the Ready Brake pretty tight, much like a trailer with brakes. A firm braking will light the light on my dash and I know the towed's brakes are being applied.