You can attract many more customers to your business or event by using short-run rack cards for your marketing and advertising needs. The majority of the time, rack cards fit into standard brochure racks and regular-sized #10 envelopes. At Rush Flyers, we give you the option to choose the smaller 3.5 x 8.5-inch version known as short-run rack cards so you can fit your new marketing into a #9 envelope.