The Little Mermaid Backpack with Lunch Bag Set - Bundle with 16" Ariel Backpack, Little Mermaid Lunch Box, Water Bottle, More | Little Mermaid School Backpack for Kids. This Little Mermaid school bag bundle includes one 16" backpack with adjustable shoulder straps, zip closure compartment, and top loop for hanging. This backpack features artwork of Ariel and other mermaids. Show off your love of The Little Mermaid in style! This classic school backpack is sure to be a hit with Disney fans and pairs perfectly with all other Ariel merchandise. This Little Mermaid backpack set also includes an insulated Ariel lunch box, perfect to take your food with you to school or on the go and keep your food at a safe temperature. Officially licensed Little Mermaid backpack with lunch box for boys and girls alike. This set also includes a Beach Kids water bottle, and a Beach Kids princess castle door hanger. For kids over 3 years of age.