This bit is part of the "Rookie" series of bits. This is a great bit to use on colts that are just getting into the shank bit. The 3-piece mouth in this bit allows the introduction of a curb chain to young horses and still keep them confident when you pull on them in the turns. If you ride young horses, this is a must have for your collection. 3/8" Twisted Wire Mouth, 5" Cheeks, 5 1/2" Mouth. Endorsed by Molly Powell. Lifetime Guarantee. Made in the U.S.A.