The Black Correction Bit has a ported mouthpiece that provides tongue space and allows the bit pressure to roll onto the bars of the mouth. Copper wrapping promotes relaxation and encourages salivation. Swiveling cheeks allow the horse to feel an opening rein, making the transition from the snaffle to a shanked bit easier for your horse to understand. Antique finish. 5" mouth, 6" tear-drop cheeks.