Rohil industries supplies large capacity non-transparent opaque binders. These binders are provided with 2 or 3 nickel plate inside to hold documents firmly. Due to these binders, its easy to flip through the entire file.Loose papers are held by the side pockets inside the file. With different colours these ring binders are available. And various models are also available such as:501/502, 511/512, 521/522, 531/532, 516-a/516-f.