Bit always remains in perfect position.
Functions as snaffle with light rein pressure.
Functions as mullen mouth as pressure increases.
No pressure on palate or nutcracker effect.
The contours of the mouth piece help the horse to find the correct head carriage.
Horses that tend to get strong are corrected by a change of pressure points in the mouth.
Specific shape of the D-rings bear on the outside of the mouth as a gentle correction to resistance to the direct rein.
Sizes 5 , 5 , 5