Bar bits put even pressure on the entire tongue. In contrast to a single or double broken bit, there is less pressure on the edges of the tongue. You should always choose the bit that is exactly the right one for your horse, because if the bit is too big, it can become jammed if you press the reins on one side. Bar bits are often used for very strong horses that, for example, elude the rider's help when approaching an obstacle. Also for horses with tongue problems (pressure sensitivity - tongue is pulled up or stretched out to the side), a bar bit with freedom of the tongue can be an advantage. Flexible bar bits are particularly suitable for horses that occasionally tighten and are often well accepted by horses that are with not coping well with broken teeth. This is also a good alternative to the classic bar bit Max Control bit by Sprenger, which at first looks like a normal broken set of teeth and becomes a bar with strong pressure.
However, it is always important to handle the bar bit with sensitivity. The rider should be able to ride the horse independently of the reins with weight and leg aids.