Slobber straps provide instant release when working with the bit to reward the horse for appropriate behavior.Slobber straps are a double strap of leather with a hole in both ends. They are normally used with a snaffle and mecate reins. The slobber straps are folded and fit through the rings on the bit. They are designed to be used with a bit that has at least 3" rings so that there is room for the headstall and slobber straps.
The rein is attached through both straps with a half hitch knot which allows for easy adjustment and removal .
My husband used the slobber straps for awhile. He is into trying different things, but I find something that works and stick with it. I believe less is more around a horses head. I think they work the same as a curb chain, giving the horse a hint before bit pressure is applied. I didn't like them especially with the mecate reins, just too much rope to keep track of.