?This foot roller electronic foot file is designed to remove hard skin for smooth results after just one use.?Perfect electronic pedicure foot file quickly helps you achieve soft, silky feet.?Insert the roller into the device, making sure it is fully engaged.?Insert the batteries and turn on the device.?Do not soak your feet before using these roller.?This will make it impossible for the hard skin to be effectively removed.?For best results, your feet should be clean and dry.?Wipe or rinse feet to remove any excess dead skin and thoroughly dry feet.?Finish by applying a foot balm or cream, such as foot scrubber daily moisturizer.