Ring Snaffle Bit. This bit is not too thick, not too thin, it's just right. Available in 4.5 inch, 5.25 inch and 6 inch.
The snaffle bit is intended to be used for teaching, controlling, reinforcing, and refining lateral flexion and is a great tool to use for your Porcupine Game when riding. It is to be used mainly with a sideways pull for lateral flexion. It's thin to discourage leaning, designed for control and to be used with one rein at a time.
Horses enjoy the taste of sweet iron with copper inlay. It is a bit to be used mainly with a sideways pull for lateral flexion. It is not the type of bit you pull on with both hands at the same time. Whenever you use a snaffle bit, use one active rein at a time, either directly or indirectly, or, use two supporting reins at one time to hold a conversation with your horse about stopping or yielding back. The latter is a matter of holding the reins, not pulling on them to stop the horse.