This queen cage has some features not found in other queen cages. It has a tethered plug for the entry that doubles ads a hanger so it can be positioned between frames while the bees eat out the candy plug (not included) it also fits between frames resting on the flanges.The inside of the latching door is made to fit a mini marshmallow or it can be filled with the candy of your choice. The cage can also be used to mark queens with the foam pad and riser device to push the queen to the top grid for marking. The riser is 3D printed and is a bonus with this 10 pc offer. PLEASE NOTE: When a queen is being introduced to a new colony, the slots will not allow worker bees to pass through and sting her. Also, any attendant bees would escape. See video at YouTube “queen cage by spehar”. This listing ships USPS First Class Package anywhere in the United States, AK, HI, PR and U.S. protectorates for $4.65. Sorry no international shipping. This product is proudly made in California where all our plastic beekeeping products are made. We are taking America back, one product at a time. Spehar beekeeping products, imagination + Unfair advantage