Sprenger Double Jointed Max Control 125mm (loose ring)The Sprenger MAX Control Loose Ring Snaffle is designed to be a correction or training bit. This is a double jointed, stainless steel bit which locks at a certain angle, designed to lie well in the mouth when the horse is working properly then creates a rigid feel when the horse gets strong or opposes the rider's hand. Thickness of mouthpiece = 16mm