It is jointed but has three pieces to prevent the mouthpiece from collapsing and pinching and it has a very low port which offers some relief of pressure from the tongue (pressure on the tongue is what horses hate most about bits).
I would use this for very green horses or for horses that are being ridden in a regular snaffle and are needing more comfort in their mouths.
To me, this is the ideal snaffle for the horse’s comfort.
It has a medium port and an ergonomic shape that gives the horse maximum tongue relief without getting into the palate.
I like to use this bit on horses that are well-trained and compliant to the rider’s aids but need more comfort from the bit (the horse that is otherwise very good but shows signs of bit discomfort, like opening the mouth, drooling, wrinkling the lips, tensing the neck, etc.