ZipBin Princess Pack is a backpack that looks like a castle. Kids unzip its vest and castle walls invite figures into the castle. Unzip the front and there is a two-story doll house with a slide into the illustrated swimming pool. The ZipBin® Princess Pack PlayPack is a great way to carry dolls, too. When play is done, the house zips up, capturing the toys inside for easy clean up. This play set includes a 4" doll. Choking Hazard - Small Parts. Not for children under 3 years. Launch date: September 2010.