We are big manufacturer of pp statiionery and can make different file folders, like file case, expanding file,display book and clip file and so on. The material is pp and the size is a4, a3, b5 and other sizes, the thickness is from 0.15mm-1mm, we also can make, you also can visit our factory, you can offer us the sample too we can do them for you as the customers\'\' requirement. And if you are interested in our product , don\'\'t hesitate and contact me! we can export to you directly too!