Okay kiddo, have you ever seen a picture of a king or a queen from ancient Egypt? They usually have something on their head called a "nemes", and they also hold something in their hands called a crook and flail.
The crook looks like a long stick with a curved end, kind of like a shepherd's staff. It was used by the kings and queens to show that they were the leaders of the people, just like a shepherd leads their sheep. It was also a symbol of protection, because the king or queen was supposed to protect their people just like a shepherd protects their flock.
The flail looks a bit like a whip with three parts. It was used by the kings and queens to show that they had power and authority over their people. It was also a symbol of fertility, which means that the king or queen was supposed to help their people have lots of babies and make sure that their crops grew well.
So basically, the crook and flail were symbols that showed that the king or queen had power and authority over their people, and that they were supposed to protect and take care of their people just like a shepherd takes care of their sheep and help their people have lots of babies and good crops.