Trammell Lightweight Bobby Stivers Chain Nose Hackamore
From the manufacturer: This hackamore was designed by renowned barrel horse trainer, Bobby Stivers, to prevent cocking, pinching, and blocking that occur with a standard hackamore bit. When you go to one rein on this bit, the opposite cheek collapses against the side of the head making this an excellent turning tool to bend a colt's head and correct an old horse's problems. This can be a strong stopping bit and should be ridden light handed. The chain nose is adjustable and should ride on the upper hard area of the nose. This bit is offered in chain and rope nose with a 7" or a 9" cheek. This hackamore has also been proven to be a good bit on rope horses.
This is the chain nose, 9" cheek version