The Herm Sprenger KK Ultra Sensogan® Full Cheek Bit has a 18mm Sensogan mouthpiece and 70mm stainless steel cheeks. Sensogan resists tarnishing while creating a pleasant taste, encouraging salivation and promoting acceptance of the bit.
The Gina Miles Slow Twist D-Ring Bit from Professional’s Choice® has a classic d-ring cheek and a twisted mouth.
This HS Hubertus Schmidt Aurigan® Ported Weymouth Long Shank Bit features a 16mm Aurigan mouth with 13cm shanks, 7cm lower shanks. Curb chain hooks are fixed to prevent pinching. Aurigan, an alloy high in copper, oxidizes rapidly, encouraging salivation and acceptance of the bit.
Stretching for a custom fit, the Nunn Finer Figure 8 is a solution for buckle rubs.