19-ring plastic combs available in a variety of colors and sizes for a custom look. Use with Fellowes or any standard 19-ring comb-binding system. Create easy to handle documents with these plastic comb bindings. Your reports and documents with have professional, custom look. For use with Fellowes or any standard 19-ring comb-binding system. Global Product Type: Binding Spines-Comb; Binding Spine Type: Comb; Sheet Capacity: 20; Spine Diameter: 1/4 in.