Ball Joint Test

I was looking for the effective joint parts.
A good item for the plastic model kit is being sold by Japanese maker.


-Wave http://www.hobby-wave.com/LINE_UP/optionsystem/index.html
-Kotobukiya http://www.kotobukiya.co.jp/item/page/parts/index_poly.shtml
-Yellow Submarine http://ys-hobby.shop-pro.jp/?mode=cate&cbid=182565&csid=7



These items has some types, size and length, shape.
There are various types of these items.
There keeps strongly.

However, the only problem is a high