UniBind SteelBack Spines are truly the most innovative product to be introduced in the binding industry in years. UniBind SteelBack Spines allow you to use your own binding covers whether they be custom, clear, linen, leather or other cover types. Simply place your presentation in the paper lined spine and insert it into the UniBind Binding System. This is truly the easiest binding system to come along in decades. Your time spent punching and inserting coil, comb or wire binding elements can be a thing of the past.