The Herm Sprenger Neck-Tech Prong Collar is a new design in prong collars. The Neck-Tech not only enhances the performance of the prong collar, but also gives it a stylish and discreet appearance. The Neck-Tech is designed with a martingale style quick release snap for easy on/off.Available Sizes:Neck-Tech Prong Collar - 19 inchNeck-Tech Prong Collar - 24 inchClick Here to Purchase Extra LinksThe Neck-Tech dog force collars are made in Germany of top quality stainless steel. Each element is stamped from solid coiled steel stock. Guaranteed 100% Rust Proof. Designed for use with all dog breeds, including both short and long haired dogs. Herm Sprenger Neck Tech tines are designed to imitate the shape of dog's teeth, creating a "natural influence" over the dog.Safety Notice: Prong collars can come unhooked at any link point. Combining a backup collar in addition to the prong collar is recommended. Simple slip collars, like dominant dog collars, make excellent backup collars. Clip your leash on the simple slip collar as well as the prong collar. Make sure there is enough slack in the slip collar for the prong collar to work correctly without restriction from the backup collar.