The holder is designed for use on a belt. Its designed just to fit the NP-BX1 battery. I will eventually be getting around to the batteries of all the other cameras I own.
The holder has a dual (reversible) hinge so it can open either to the left or the right depending upon your preference when you have it on your belt.
It has a finger slot to slide the battery up out of the holder.
I would suggest printing this out with a somewhat flexible resin. I used Anycubic's ANYCUBIC UV Tough Resin. It has a little give to it so the hinges can be snapped on.