Originally Posted by My2Geldings
My best friend actually just brought it up yesterday. Take a piece of baler twine in the their mouth and measure it that way. Add half and inch on each side when you remove it and there you go, you have a measurement.
Thanks, that actually works out pretty perfect because her mouth measures 4" that way and adding 1/2 inch to both sides takes it to 5" and the 5" bit looks to me like it fits pretty well