50cm Obitsu body and 40/45/47/50(male)cm Parabo bodies
All of the Parabox original bodies (40cm, 45cm, 47cm, and 50cm(male) use the inner structure from the Obitsu 50cm body. Some parts of the inner structure were shortened to fit the sizes for each body, with Parabox original skins.
Flexible moves provide a lot of possabilities.
The 40cm-50cm bodies offer flexible neck movement.
Elbows & knees for the 40-50cm bodies bend further than the 55cm/60cm bodies.
Ankles for the 40-50cm bodies bend deeply.
In the picture, the neck piece on the left is for the 55cm/60cm Obitsu body, and the right one is for the 48cm/50cm Obitsu body and the 40cm/45cm/47cm Parabox body. All the 1/3 scale heads that Parabox sell can be used with both pieces.