This Diamond T Bar Belcher Chain Extender allows you to mix-up and personalize your chain. The size of the belcher chain, is our large size, but looks great paired with any of our dog clip chains. The length of the extender is 1 and 1/8ths inches long with the T bar. Each extender is custom hand-made to order in 2-3 weeks. Requested modifications are subject to revised production timelines and pricing.