This leash is a 34 inch long leash that can be adjusted smaller using the rubber slider on the leash. We have been asked for a longer leash for years and finally we had this specially made for people with larger necks. These leashes have a rubber tube end that plugs onto the end of your sunglass frames. They will attached to most frames but sometimes they are really snug. This leash fits most people but does not fit real big guys with a big neck. We are working with the manufacturer to make a leash that is much longer, it will be available sometime this summer.