Ibimatic Cerlox Binding Machine - very lightly used. Excellent condition. Includes Cerlox front & back covers and Cerlox binding spines. Cerlox binding (sometimes referred to as comb binding) is a cost-effective binding that has been around many years and allows the book to lie flat on the counter (great for cookbooks) or on your lap. Cerlox binding is ideal for books that you need to add or remove pages from easily.