L001 is made from cold rolled steel with hand inlayed copper bars. Shank length is 8", Mouthpiece width is 5", and the diameter of the bars is 3/8".  Adding a Shank Hobble to the Rein Rings can add a stepping block to your training program by adding a stability or stiffness to the feel.  Can also be special ordered with Sterling Silver.   All measurments are approximate, slight variations can occur with handmade bits.