Dutton Bits Twisted Wire Angled Square Port Cavalry BitDutton Bits Twisted Wire Angled Square Port Cavalry Bit Mouthpiece Width: 4 1 2" Bar Width: 3 8" Purchase: 3" Shank: 5 1 2" Cheek: 8 1 2" Port Height: 1 3 4" Width: 1 1 4" Features: Copper rings, copper inlay This Square Port bit has a slight angle on the port to lay nicely in a horse's mouth, that way the port is not exuding palate pressure unless leverage is applied to the shanks of the bit. Ridges in the twisted wire bars motivate horses to not