This item is great if you want to store your files in subgroups e. g.receipts by month or tax forms by category. Then when you need to work on that category you can lift the whole file out and take with you. Great quality.
I've been using this product for years to keep tax receipts. Using Quicken to narrow down the search I can put my hands on any receipt I need for tax or warranty purposes. Fits in the file cabinet next to my desk making it very convenient.