This is a set of ball joints that can make the joint part of the character model multi-movable. Contains three types of shapes and a ball shaft that fits into them.
By using it for joints that also serve as connection parts, free movement can be reproduced.

■ BJ-03 (ball diameter 3mm)
■ BJ-04 (ball diameter 4mm)
■ BJ-05 (ball diameter 5mm)
■ BJ-06 (ball diameter 6mm)