Eggbutt snaffles are gentler, as they do not pinch the side of the mouth. In these, the mouthpiece does not rotate, and this may be more comfortable to some horses.
 
Big Egg Butt Bit - Horse bit
The mouthpiece has a hexagonal shape, with large side washers which prevent pinching of the bite on the labial commissures and to prevent the ingestion of air. The side supports are unique in the market. They are the first in the world made from cnc aluminum together with the best Swedish steel.