I Am a Big Sister Doll and Book Bundle (Sister / Church) This bundle contains 2 items. The first items is a "Big Sister Play Doll" and the second item is a "I am a Big Sister Book". I am a Big Sister Book By Carolyn Jayne Church is a very sweet story to share with and prepare an older sister for an expanding family. Big Sister Play Doll is 11 inches and is very soft and cuddly. Great gift to share the joys of becoming a big sister! Make big sisters feel special and create that lasting bond between sisters.