Jump'In Twisted Loose Ring Wilson Bit with Flat Link
The thin French mouth mouth piece frees the roof of the mouth from any pressure. The twisted mouth piece and the flat give a stronger action. The two free rings are fixed to the cheek pieces and the two mouth piece rings are attached to the reins.
The play between the rings helps avoiding fixed points and so split the horses contact points. The thinness of the mouth piece combined with the twisted aspect and the central flat makes it easier for the horses to respect the bit and for the riders to have more control.