HON Single Front-to-Back Hanging File Rails, 4 per Carton (H919491) INCREASED CAPACITY: HON accessories lets you add and subtract space as you need- with these 4 hanging file rails you can add two drawers for extra filing SINGLE CROSS RAILS: Racks span between 15.25" wide rails - the rails mount over standard hangrails to hold hanging folders in an easy to sort, front-to-back format CUSTOMIZE: Whatever your office needs for that day, week or month, you can easily adapt your work space and stay organized with these extra HON rails HON ACCESSORIES: You can always expect nothing but the best from HON- high quality product at an extremely affordable price makes these hangrails the perfect addition to your office or home filing system