The fiber optic solid core 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 solid cord cable that is 54 feet long. Fiber Optic Solid Core Side Glow Cable is typically used for swimming pool lights and neon light replacement. Fiber Optic side glow solid core cable is covered in a clear outer jacket. Please choose your diameter of cable that you need.