Cablz Flyz are non-adjustable and made from durable, Fly Fishing-like line.  Cablz Flyz are flexible, very lightweight and waterproof.  They are 22" long but can be shortened to your desired length. Cablz Flyz come with our universal ends to fit most frames and are available in several colour options to suit your taste. 

Cablz Flyz are great if you want to be able to take off your glasses to hang them around your neck.