Classic Equine Tool Box Square Hinge Port Bit 8" Cavalry ShankClassic Equine Tool Box Square Hinge Port Bit Cavalry Shank Mouthpiece Width: 5" Bar Width: 1 2" Purchase: 3" Shank: 5 1 2" Cheek: 8 1 2" Port Height: 1 5 8" Width: 1 1 4" Features: Copper inlay This final cheek in the Tool Box is designed for the finished performance horse or tough mouthed older horses where more control is needed. It can be used as a schooling bit to get a horse that is not responding to milder bits to collect and break at the poll.