DESIGNED FOR SERIOUS PERFORMANCEFine form meets rugged function. Designed in partnership with Italian engineer Francesco Burato, we've redefined what a pro-grade weight collar should be. Inspired by the competitions nightmares, the Canine Athletes Elite-HD Weight Collar asserts itself quite simply as the best weight collar ever built. This collar offers clean Italian design that not only looks incredible; it literally gives you control of the weight inside the collar down to the ounce. This allows the flexibility to effortlessly adjust the weight of the collar depending on your dogs individual needs. Simply unzip the end of the collar and add or remove weight as desired. You no longer need multiple weight collars as your training progresses or your dogs change.