BJ Ball Joint
$2.99The set includes three types of ball joints and a ball shaft that can be mounted on each ball joint.
You can reproduce free movement by using these ball shafts for joints that also act as connecting parts.
BJ-03 （Ball diameter 3mm）
BJ-04 （Ball diameter 4mm）
BJ-05 （Ball diameter 5mm）
BJ-06 （Ball diameter 6mm）