Knotty Girlz mecate reins are manufactured with premium double braid yacht rope or treeline. Mecate reins vary in length from 18ft. to 24ft. With two different end options: leather poppers or rope tassels, you will find something to fit your needs! When purchasing mecates with poppers on both ends, the working end will have a longer popper and the end that ties under the gullet or cheek will have a shorter popper. Looking for a halter/hackamore set? We have those too!