Has Islam guaranteed women equality with men?

A Muslim woman seeks justice rather than equality, since equality with man causes her to lose many of her rights and a great deal of her distinctions. Let us assume that someone has two sons at the age of five and eighteen. He wants to buy each of them a shirt. Equality, in this case, means buying them shirts of the same size, which means that one of them will have to suffer. On the other hand, justice here means buying each of them a shirt with the size that fits him, the thing that will make everybody happy.