So, this is wrong then???
Posted on the draft tack web site, ......
UXETER LOW PORT KIMBERWICK BIT
Stainless Steel, comes with Curb Chain and hooks. Offers good stopping control. A nice bit for a tad harder to stop draft. It also offers good lateral control of horse.
The low port mouth sits comfortably over the tongue with an even pressure applied to the jaw over the bars. This helps to keep the tongue under the bit.