The success of your Flex Belt toning session relies on the quality of your Flex Belt Gel Pads. When it's time for new Flex Belt Gel Pads, be sure to have them on hand so you don't miss a day of toning while waiting for new Flex Belt Gel Pads to arrive. We recommend adding an additional 2-3 sets to your order. You can always order new Flex Belt Gel Pads later if you don't want to get extras now.