Fiber Optic Solid Core End Glow Cable is sold by the foot and priced by the foot. The order quantity is the actually footage you will need. For example, if you need 54 feet you will enter a quantity of 54 and we will ship you one piece of fiber optic cable that is 54 feet long. Fiber Optic solid core cable is typically used for swimming pool lights and in fiber optic light fixtures. Fiber Optic solid core cable is covered in a black outer jacket to keep the light inside the cable. Please choose your diameter of cable that you need.