Introducing the new and improved Adjustable Orbiter, the golden child of the Orbiter family. Y'all loved the adjustment capability so much that we decided to make it even easier and smoother. Snug these babies up and they will lockdown your glasses with a steel grip (stainless steel) then loosen them right back up to let your glasses rest around your neck. | Chums Adjustable Orbiter Eyewear Retainers