The six strand of .75mm fiber optic sparkle cable comes in a 450 meter (1476 foot) spool and is 3.8mm thick. This product can be used for fiber optic lights, fiber optic curtains, fiber optic chandeliers and a wide variety of other applications. The nicked fiber optic cable gives a very distinct lighting effect and we suggest that you use a 150 watt metal halide illuminator to light the sparkle cable. This product is suitable for indoor, underwater and outdoor use as well. It can be used in waterfall features as well. We will also be selling crystals to attach to the fiber optic sparkle cable as well. Due to a very high demand in this product line there is a 1-3 week lead time.