These Knotty Girlz lead ropes in white are made using New England Ropes 1/2" Braided Safety Blue. Although the name is deceiving, the rope is white in color, with a blue core. We also use CBKnot 1/2" Tree line in black. Both ropes are standard 16 strand climbing ropes. Both ropes are considered "non spliceable", meaning they rope cannot be put back into itself. This rope is used by many natural horse trainers, due to its great UV resistant properties and long life. Because the rope cannot be spliced, then ends are capped and poppers are then added. This product has a longer popper on the working end and a shorter popper on the end that ties into the halter. With length options ranging from 10-16ft. you are sure to find something to fit your needs.