We love the Ovation Elite Solid Stainless Steel 2-Ring Gag because it is specially designed to accommodate a narrower palate.
The Ovation Elite Bits feature a shorter rotated link, which allows it to rest entirely on the tongue when rein pressure is applied. This special positioning allows for more precise communication through the reins.  This bit is for experienced hands as the gag incorporates leverage with the standard snaffle action and adds pressure on the poll.  This bit is used to elevate the horse's head.  
2-Ring Gag
18mm mouth
Features a shorter rotated link
Allows more precise communication through the reins 
Leverage with the standard snaffle action and adds pressure on the poll
Used to elevate the horse's head
Sizes:
5"
5.5"
*is for experienced hands*