First, the head is very good quality as expected of Good Smile Company. It comes in a little cube box with authentic GSC design.

However, it may not perfectly fit other faceplates. I took a faceplate from one of my new Nendoroids to make him look bald. It held together, but it was loose. This created a gap between the faceplate and the top.

If you buy this, you may need a little tape if you choose to use the top and back of the head with a faceplate from another figure.