Rainbow High School Backpack and Lunch Set - Bundle with Rainbow High 16 Inch Backpack and Lunch Bag Plus Shopkins Stickers and More (Girls School Supplies). This Rainbow High school supplies set includes one 16 inch backpack with adjustable shoulder straps and top loop for hanging and rectangular lunch bag, each featuring favorite Rainbow High characters. This insulated lunch box is sure to keep your food at the perfect temperature for hours and is great to take with you to school, the beach, on a picnic, and more! Show off your love of Rainbow High! This backpack is the perfect size for your kindergarten or elementary student to take to school. Officially licensed Rainbow High backpack and lunch bag set also includes bonus Shopkins stickers and a Beach Kids princess door hanger.