Gag bits use leverage to increase severity and act on pony's mouth and poll. Ideally, you use two reins with a gag, with one on the big ring that acts as a regular snaffle bit and the other on one of the lower rings to provide the gag action. The 3 Ring Jointed Pessoa Gag is available in 4.5 inch width. The cheek pieces, including all rings, measures 6''. See larger picture