Combi Trainer Training Aid
This simple little device is REALLY useful for lunging, introduction to driving, and starting young horses. There are super intricate systems out there, but I love this little rig. I often use it on the youngsters I am starting. The rigging sits easily behind the saddle or surcingle and has a great butt strap that rests under the tail, to encourage the horse to use its hind end. The bungee style built-in side reins give just enough freedom to not make them claustraphobic, but enough passive resistance to encourage them to reach for the bit. It is easily adjustable in several places.