I have twin girls who are seven years old and I the set that I ordered was for them. I think these leggings are perfect for little girls, twins or not. They are great quality, not cheap and thin like some other brands I am used to. These are perfect for layering under dresses or tunics or for wearing on their own. These leggings fit very well and I would truly say they are true to size as my girls wear a 7-8 in pants and these fit perfect. I would highly recommend these to anyone who needs leggings for their little girls.