Our premium #120 o-ring offset link is precision manufactured from high grades of carbon and alloy steels to provide superior strength, performance, and longevity. 120 o-ring offset links are also called 120 o-ring half links. This link type is designed to adjust the chain's overall length and make repairs. Our premium 120 o-ring offset links are made dimensionally to ANSI B29 standards and directly interchange with other brands. For additional information or to get a quote on our premium #120 o-ring offset links, contact our customer service team, and we will be happy to assist you!