This papercraft is a chibi Sailor Neptune, one of the four Outer Senshi of the Solar System, and was the ninth Sailor Senshi to be introduced in the Sailor Moon manga, this paper craft was created by Paper Mike. There are other two Sailor Mercury paper toys on the site: Super Sailor Mercury Free Paper Toy and Sailor Mercury Cube Craft.
About the paper model:
Size: 35cm (30cm without the socle)
Format: .pdo, line + lineless
You can download this papercraft model here: Sailor Moon - Chibi Sailor Mercury Free Papercraft Download