RC Pet Products Primary Colllection Training Martingale Dog Collar The primary training collar is made from soft quality webbing with a nickel plated D ring. Light & Strong nylon webbing in multiple bright colors! Reflective RC Pets Signature label keeps your pet visible at night, Proudly made in Canada Size large adjusts to fit a neck size between 15 to 25 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.