The Reinsman Circle R Correction Bit is often used for training more advanced horses. These correction horse bits also excel with horses who simply need a reminder to improve their collection and stopping. This horse mouth bit design is also a favorite choice for horses who tend to get their tongue over the bit. The mouthpiece bars are curved to be more comfortable on the more sensitive part of the horse's mouth, while the barrel horse bit's copper inlays and sweet iron increase salivation to make a softer mouth. The adjustment of the curb chain also helps control the aggressiveness of the bit.