Frame cords can be attached to your prescription glasses to keep them safe. They have the flexibility to be worn in two different ways, simply by attaching or removing the end pieces. They can be worn as a sports band by attaching the dualies to the temple ends of the frame, keeping your glasses in place during activity.

 

Alternatively, they can be used as a conventional holder by slipping the ends onto the arms of the glasses and keeping the cord around your neck. They can be used on both prescription glasses and sunglasses.