Regina Extra Superleggera hollow pin chain. Chain is complete with 114 links. Chain has 1/2 x 3/32 links. This was bought NOS and mounted on a show bike. It was never ridden. This is the lightest chain you can get other than a titanium or aluminum chain. It is 240 grams. These were made in Italy in the 80s for road bikes. Some BMX dads put these on there kids micro or mini bmx bikes for weight savings. If your building a 80s period weight weeny micro or mini bmx bike, this chain is for you. These chains go for $125 NOS. I’m asking $75 plus $5 shipping to 48 states only. I can provide more pictures if needed. Please ask questions before buying. Sold as is, no returns.