You find you queen then lay the frame down flat on top of the box when she is near the middle of it. Put the open tube in front of her and shepherd her in with your fingers, then lock her in with the plunger. if a couple of bees go in with her, no odds. Use the plunger to hold her still when she puts a wing up through the mesh. It is actually not that complicated. Sometimes the queen will put a wing up immediately and you can clip, mark and have her back on her frame in 2 minutes but the odd one acts the eejit and takes 10 minutes before sticking a wing up. I have never seen one stick a leg out at the same time as the wing so no chance of damaging it.