Black is a simple yet elegant professional color choice for your binding spine. And you can't go wrong with a black ProClick spine from GBC! GBC, a well-known and trusted name in the binding world, makes their unique ProClick spines that offer a professional look and practicality. Their spines allow for easy, on-the-go editing. All you do is unzip the spines open and snap them shut when you're done. We offer these spines in three different sizes, which hold anywhere from 10 to 125 pages. We even have half sizes for uniquely sized projects and cassettes of spines, for high volume binding.