This is a Paul Petska chain bit. The shank on this bit is the newer shank that Petska has came out with. This bit has a chain mouthpiece. These bits are great for any discipline of riding that you do. From barrel racing to team roping to cutting to trail riding to riding young colts - you can trust that your Petska bit will be your best asset in your bit collection. The shank comes in a medium shank or a long shank