Nickel Plated Malleable Iron with loose rings. The wings not only prevent the bit from being pulled through the horse's mouth, but exert lip pressure when the reins are used.

This is a very popular all-round bit. It should not be confused with the USA version of the Tom Thumb, which is a completely different model bit.

Shetland/Small Pony Size (10cm/4")
Mouth Thickness 13mm
Ring Size 50mm