These are used and preferred by queen breeders all over the world. This style of Cell Cups makes preparing cell bars simple. All you need to do is push them into the groove in the bottom of the cell bars and insert them into the frame. BAG OF ONE HUNDRED.
These are JZ's BZ's (JZBZ JZsBZs JZs BZs).
SMOKY colored cups work best to see your royal jelly and larvae. However, choose a different color for your different queen breeds!