Reinsman Correction with copper roller. 7" cheeks with 5" mouth and 1 5/8" port. 
 
"5/16" sweet iron correction with copper and roller. Attractive, well balanced shank with medium plus leverage. The molded mouthpiece bars are comfortable for the horse to carry. Sweet iron and copper creates moisture for a softer mouth. The port has slight palate pressure combined with the roller for tongue pressure for better headset and more control."