RC Pet Products 1-Inch Training Martingale Dog Collar, Large, 14-20-Inch, Aloha Limited slip corrects dogs in a gentle manner and the side buckle provides an easy on/off solution. Reflective RC Pets signature label and stitching is visible up to 25 meters, Proudly made in Canada The collar is made from soft quality webbing with a nickel plated D ring. Size large adjusts to fits neck size of 14 to 20 inches RC Pet Products stands behind the legendary quality and craftsmanship of their products. Thats why they are committed to offer a repair or replace guarantee on all their products - broken or damaged - for the life of your pet. Please find guarantee information on RC Pet Products website for all purchases after 30 days.