The AquaSketch Minno is the world's most convenient and durable way to take notes underwater. Not only does it simplify the task of writing or drawing, it also offers unlimited paper capacity making it unnecessary to waste time erasing during a dive. Small enough to fit in a pocket, the Minno can be worn on your wrist or attached to your BC with a retractable lanyard. AquaSketch is dependable, durable and simple to use. Unlike devices that can wear out or breakdown, a quick turn of the knob to advance the scroll always provides a clean surface ready for immediate use. If necessary, corrections can be made during a dive using the eraser provided. After a dive, all notes and drawings can be scanned into a computer or transcribed by hand for permanent storage. The vellum can then be erased using a standard eraser and reused.