This is Myler's version of a Mullen Relief bit. The curved solid bar restricts the tongue. This bit is great for young horses in training with a solid disposition. 7inch flat shank. The mouthpiece is a sweet iron mullen barrel with copper inlay mouth. This mouthpiece will naturally oxidize, or rust. Harmless to horses, it has a sweet taste and promotes salivation. Stainless steel 7inch HBT shanks. Myler Level 2 mouthpiece.