This product looks like a JZBZ cage but.... The fondant tube is a smaller diameter than the original so the pink caps that fit the original are too large.
The bottom open is so wide the queen can exit. The opening is supposed to be Queen excluder width. The plastic retainer bar is molded across the opening solidly. On a JZBZ cage it is lightly attached and can be removed in the field with your thumb nail. Letting the nurse bees in or out will not be possible.
The top two doors do work well so cage can still be used for most functions
Handy for Queen introduction. I thought they came with a removable cap over the fondant plug, but I was wrong, so I had to temporarily seal it with electrical tape which is a bit of a faff and a slight shame. If buying again, I would check you get the caps.
Came to notice through YouTube and thought I’d give him a try for my queen rearing stuff. Very good so far 👍