California Roller Girl

My husband won this at an auction yesterday. It is a California Roller Girl doll made by Mattel in the 90's. It is in a store display case. We tried to get it to work yesterday but I think it needs new batteries. Hopefully, it will work in the display box and also out of it. I think it's pretty cool but judging by complete listings on Ebay, they don't sell too well. I thought maybe being in a display case would increase the value but one sold for only $17.99