Loose ring snaffle with smaller rings attached to the top and bottom of the large ring.
This bit works like a snaffle with extra leverage.
The main purpose of this bit is to lower the horses head through poll pressure, and to provide stronger control.
The reins can be attached in a variety of ways.
If the reins are attached to the main large ring the bit has the same effect as a loose ring snaffle, with slightly more poll pressure due to the cheek pieces attaching to the smaller top ring.
When the reins are attached to the lower ring, the poll pressure is increased, giving the rider more control and putting more pressure on the mouth.
This bit can also be used with multiple reins or connectors, softening the leverage/pressure.
The jointed mouth piece gives the rider more control with the nutcracker action.
The nutcracker action is magnified by the leverage of the bottom rings