I am using two sheets and other accessories are included. This is a site description: Features: Bamboo Spark is a smart folio with space for your favorite paper and a smart ballpoint pen. Write by hand and press the button, and the notes are saved in digital format. You can edit, archive, and share the data by transferring it to the Bamboo Spark app and Wacom Cloud, and access it from anywhere. Write notes on your favorite paper with a pressure-sensitive smart pen. Each stroke is recorded by Bamboo Spark. Press the button to save the notes in digital format. The Bamboo Spark's internal memory can store up to 100 pages, which can be synced later. To sync notes within the Bamboo Spark app, turn on Bluetooth Smart technology on your iOS or Android smartphone/tablet. Move the data to Wacom Cloud and access it from anywhere. You can also edit with the Bamboo Spark app and Bamboo Paper app because it uses Wacom Ink Layer Language (WILL) technology. Digital notes are recorded using WILL, so they exist in the form of digital ink on the Bamboo Spark app, Bamboo Paper app, and Wacom Cloud. That is, you can make changes to the strokes with the Bamboo Spark app or Bamboo Paper app on any device. Save your notes and ideas in progress to Wacom Cloud. Data in the cloud can be archived and accessed from any device with an internet connection and a browser. Completed files can be exported in JPG or PDF format and shared via email, as well as saved to your favorite cloud services such as Evernote and Dropbox. Bamboo Spark Digital Note