How Rare?.. it's the only one we've ever seen on ebay..This is a very limited production run from 2013 that was sold exclusively through Costco, for a very short time, through very limited stores.It is adult owned and has never been opened..It is the only one of it's kind we have ever seen or sold by us.This is a very rare and highly sought-after vintage Barbie two doll set with accessories. The set includes two Barbie dolls with blonde and strawberry blonde hair, respectively, and a variety of accessories to enhance your Barbie playing experience. This set is perfect for collectors and Barbie enthusiasts alike, and is sure to be a valuable addition to any collection and can only increase in value.The brand is Barbie and the franchise is Mattel, making this set a must-have for any Barbie fan.There are some minor pinhole perforations on one edge of box as per photo ,otherwise very good condition.