tell him to go to pet value (or give u the money) & get the one for large breeds.. it'll be the same type of leash, except its thick all the way through. Rockies was red. it was the only leash we were able to walk him on, except the car chain.

I know it sounds mean, but if the rottie is too strong & doesn't know how to walk on a leash, he might want to invest in the largest prong choaker. Rocky was too darn stupid to learn how to walk. he use to drag 2 of us around. then we gave up & ran him with the 4 wheeler, until the prong choaker came to our town. We bought the largest one there (the thicker the prong the better chance it'll have in not harming the dog). We also decided to set it as far down his neck (the lower its set the better it is for his neck). Never pull back on the leash, for his first time using it make sure u give him no leash at all (so he'll learn it hurts if he pulls), u don't want him to learn it hurts the hard way, that'll cause damage to his neck.

Its a great tool for very stubborn & powerful dogs, if used properly.