You have to just attach them to the back of the paper and place them in the ring binder. You can use them on documents, booklets, catalogues, and many other types of papers. Filing strips come in a variety of options based upon their brand, size, and price. While buying them, you should keep the size of documents you are going to file using them. However, some of the best brands are FIS, Rexel, DBC, and Durable. Filing strips are one of the important office supplies you should invest in. They are usually multi-punched so that it can fit every type of folder and ring binder. You can go for a pack of 50, 100, or more. They eliminate the need to punch holes in the documents. You can file them anytime and anywhere you want.