Sprenger MAX-CONTROL Loose Ring Snaffle 16mm Mouth 70mm Ring. The Sprenger MAX-CONTROL Loose Ring Snaffle is a double jointed bit, which at first glance it looks like any other double jointed snaffle, however the MAX-CONTROL Loose Ring Snaffle is a training or correction bit. The MAX-CONTROL Snaffle locks at a certain angle and becomes a straight bar, this means that when the horse is working properly into the rider's contact the bit lies well in the horse's mouth, however when the horse resists the rider's contact the bit locks into a straight bar. Read more… The loose rings on the MAX-CONTROL Snaffle also discourage the horse from leaning or grabbing hold of the bit. The Mouthpiece is 16mm in thickness and made from Stainless Steel. The Cheek Pieces are 70mm in width and are made from Stainless Steel.