We purchased this along with the doll bike seat for a birthday party of a friend. It was such a hit we used it again for a neighbor's kid. She was thrilled and then when the kids rode bikes together my girls complained that they didn't have their own so Santa brought them for my kids this year. "Helmet" was heavier/thicker plastic than I expected and I was worried it would make the doll's head bounce around. It does for some brands but not most. The kids like that it is heavy as they feel like they are REALLY protecting their dolls, which I feel sends a good message. They are able to clip and unclip the helmet themselves and we have not had it get tangled up in hair YET. Kids really liked having stickers to decorate the seats. They come in pink and purple so that they can match the seats. Cheap gift that gets used regularly if you have bike riders! (-: