The Mikmar Straight mouthpiece is available in two sizes. They are 5.25” and 5.5”. Due to the shape of the mouthpiece and function of the bit the 5.25” fits most horses. There is not a lot of lateral movement and no pinching, so for example, a horse that normally fits in a 5” mouthpiece will use the Mikmar 5.25” mouthpiece. This size fits a wide variety of mouth types from large ponies and Arabians to Warmbloods. The 5.5” fits large Warmbloods, for example, a Draft cross with a wide head, large mouth, and thick lips.
The Mikmar Jointed mouthpiece is available in four sizes. They are 5” 5.25” 5.5” and 5.75”. They fit similar to any double-jointed mouthpiece, for example, French Link or Dr. Bristol. The 5” generally fits a horse with a smaller muzzle and mouth. The 5.25” fits most horses. The 5.5” and 5.75 are best for larger breeds for example, large Warmbloods or Draft crosses.