Upgrade your Wacom Intuos Pro (PTH-660 PTH-860) by applying the Paper Clip. It holds up to ten A5 (half-letter sized) or A4 (letter sized) paper sheets to your tablet ready to sketch on with the optional Finetip Pen or Ballpoint Pen.N/AN/AAn accessory Soft Case is included to safely store and transport your Paper Clip pens and other accessories.