A 7 1/2" Stainless Steel Embossed Seven Shank with Sweet Iron Forward Tilt Ported Barrel (MB 36, Level 2 3) Copper Inlay. This mouthpiece is made of polished Sweet Iron which naturally oxidizes or rusts. Harmless to horses, it has a sweet taste and promotes salivation. The 36 mouthpiece is a Myler alternative to the traditional mullen mouthpiece. Has the wide low port that allows the tongue to pass under the bit comfortably. The port is Â¼â€ high, just enough to allow the tongue to elevate and swallow, but not high enough for palate pressure. The 36 mouthpiece is identical to the 06, except the 36 port is tilted forward at a 45Â° angle. The 36 offers more tongue relief than the 06, but when the reins are engaged, the tilted port will apply more tongue pressure than the 06. The curved mouthpiece wraps the horseâ€™s mouth, allowing more space for the tongue under the bit. When the reins are engaged, the 36 applies pressure primarily to the bars and lip. This mouthpiece also has Independent Side Movement.