Transforming into their regular, standard Senshi form
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The Transformation Pens were the first magical transformation items that the four Inner Senshi had used in both the manga, first anime series first season, and the first thirteen episodes of the second anime series. It allows each one to transform into her regular, standard Sailor form.
In the manga, the first time Ami received her pen, she actually was seen using it for writing before using it for transformation. The Sailor Senshi sacrificed their pens, in order to awaken Sailor Moon, who was within Metaria at the time. These pens were eventually replaced by the much stronger and more powerful Star Power Stick.
All the Sailor pens had each Sailor Soldiers' own planetary symbol engraved on the cap as well her own signature color: Dark blue for Sailor Mercury, dark red for Sailor Mars, dark green for Sailor Jupiter, and bright orange for Sailor Venus.
In the Crystal, Ami won her mystical pen by playing the Sailor V game while Luna gave Rei and Makoto their transformation pens, and Artemis was the one who gave Minako her pen, all pens look identical except Minako's, as hers was a different style more like a pencil with a cap and a star on the top.
Unlike Ami, Rei and Makoto's pens, they look identical in the original anime except the planetary symbols on each one are never engraved in the caps.
They were destroyed when the Sailor Senshi combined their full Sailor powers as one in a last ditch effort to try and eliminate Queen Metaria. They were later replaced by the four mystical, much stronger Star Power Sticks in the fifteenth episode.
- In the original anime, all the Inner Senshi had identical transformation pens (except for the color and sign), but in the manga and Crystal, Sailor Venus had a different pen that came from her Sailor V times.
- The term "transformation item" can also be used to refer to any other pen-type transformation item.