Check the listing for details. USED-Sprenger-Stainless Steel Training Dog Collar w/ClicLock Buckle-2.25mm/16". Condition: Used. Listed at 42.00 USD. PRODUCT INFORMATION: Herm Sprenger Stainless Steel Prong Collar with Assembly Chain and Click Lock Buckle: Specifically designed for dogs with the NECK SIZE OF UP TO 13 inches (33 cm); Overall collar length is 16 inches (41 cm) by 2.25 mm wire gauge; Adjust collar length by removing or adding pronged links to the desired lengthCollar Characteristics: Martingale-style Ultra-Plus training prong dog collar features a center plate, assembly chain, ClickLock buckle and a Swivel D-Ring; ClickLock buckle allows placement the collar around the dog’s neck without pulling it over the head; Take the collar off with ease by unlocking the buckle; NOTE: Plastic Black Jacket is designed to SLIDE ON AND OFF the unfastened buckle and does not compromise functionality of the enclosureUse and Functionality: Center plate positions middle links to apply even pressure around the neck; Assembly chain loop tightens as the dog is pulling on the leash providing additional help for training and behavior correction; Swivel D-Ring is designed with full 360-degree rotation, allowing for no tangle full mobility of the leashPerformance: Premium quality training collar for optimized communication with your dog; The collar should sit snugly under the dog’s ears and jawline; Properly fit pinch collar is safe for the dog and promotes positive training experienceMade in Germany: With precise German engineering, reliability, and quality by the world's foremost manufacturer of top-quality training collars; Locate HS-Germany stamp on the D-Ring as well as center plate and buckle