Using A Cloake Board for Queen Rearing is an Effective Way of Raising New Queen BeesFeatures: Easily create abarrier by sliding in a metal divider Completely separate worker bees from the lower colony - and the queen Designed for brood chambers with 10 frames Can also be used solely as a queen excluderUse:Our 10-frame cloak board for queen rearing makes it easy to completely separate your queen from the rest of the hive. All you have to do is slide the metal divider into thequeen excluderpart of the cloak board when the queen is in the lower hive body.At that point, the worker bees will be completely cut off from their queen, which will encourage them to prepare for a new queen. Once they're prepared to replace the existing queen - about 24 hours after inserting the metal divider - all you have to do is use agrafting toolto insertthe larvae, which will provide candidates for new potential queens. To make the grafting process easier, use ourJZs BZs queen cell cupsto hold the larvae. With the worker bees under the assumption that they must replace their queen, there's a greater chance the grafted larva will be accepted.The final step is to remove the divider; this while keep the existing queen separated from the worker bees while the grafted queens are incubated. Pleasenote using this product requiresknowledge in grafting larvae.Read more about how to use a cloake board to raise queen here.[tab]Weight4 lbsDimensions 20 16.25 x 1 in