641 Reinsman Junior Cutter 1/2 Inch Sweet Iron Medium Port Curb Bit with Copper Roller 5 InchReinsman Junior Cutter 1 2 Inch Sweet Iron Medium Port Curb Bit w Copper Roller 5 Inch 7" Cheeks 5" Mouth 1 1 2" Port Stage C Probably one of the two best all time shanks with medium plus leverage and excellent balance. Mouthpiece is good for a nervous horse that likes to play with the bit. Adds some tongue pressure to help break a horse over at the poll for a better head set. More control than a normal medium port.