The MB 04 is similar to the MB 02 in that it will rotate on the tongue and apply tongue pressure, however, it has a small (") port that introduces some tongue relief to the horse. The port allows the horse to swallow and move his tongue when he is moving forward and relaxed, which acts as a release or reward. The mouthpiece is curved, and it wraps around the bars and lips instead of pinching.
Independent Side Movement
Stainless Steel Mouthpiece
Curved mouthpiece does not pinch lips and bars
NOT Dressage Legal
The Kimberwick is a D shaped stainless steel ring with a purchase for the headstall and two attachment options for a single pair of reins: the direct (snaffle) and the indirect (curb) positions. Comes with curb chain. Like the Pelham, the purchase creates a fixed cheek so the bit is held in the correct position. The rider can choose the direct (snaffle) position or indirect (Curb) position for rein attachment. The Indirect Rein position adds very little to mild leverage. Designed to be used with only one pair of reins.