Professional Choice Equisential O-Ring Snaffle with smooth dog bone.  Sweet iron composition with copper inlays for a soft, moist mouth.  Great for green or sensitive horses.  3" rings with a 5.25" mouth.  Bit will rust with moisture exposure.  Sweet iron promotes salivation and a sweet taste in the horse's mouth.
 
 
3" O-rings
5.25" mouth
Smooth Dog bone
Sweet iron composition