The Zeus line of dog collars, leashes, and harnesses offer a complete range of products in classic and fashion-fresh colors for everyday walks and for basic training needs. Zeus Adjustable Nylon Dog Collars feature SMART collar construction, making them stronger than conventional collars with plastic buckles.With our SMART collar construction, the plastic buckle loops through the metal o-ring leash attachment. When the dog pulls on the leash, the pressure is applied to the metal o-ring of the collar, relieving the stress on the buckle.Zeus adjustable nylon collars, with quick-release duo-tone snap buckle, are available in 3 dynamic colors and 3 sizes (small, medium and large). Complementary-colored leashes are also available (sold separately).Zeus Adjustable Nylon Dog Collar - Medium, Deep Red