• New, unused Regina Extra Anniversario  5/6/7/8-speed index chain. New In Bag. Approved by Campagnolo for Syncro use. The chain runs one way. The side with the black connecting links faces toward your bike. 
• 3/32"x1/2" chain.
• Classic brand, made in Italy and 114 links.
• CN251.
• FREE shipping in the USA.