DC Comics Batman MINI Backpack Preschool Bundle ~ Batman School Supplies And 11 INCH School Bag With 300 Batman Stickers (Superhero School Supplies). The Batman backpack set comes with one 11 INCH Batman MINI backpack with adjustable straps and front pouch, as well as 300 Batman stickers. This small size backpack is great for preschool kids and more! Never leave home without Batman again. The perfect companion for school kids, the Batman backpack can hold everything your kid needs to succeed in school Batman style. This Batman school bag is a great addition to any other Batman home merchandise or Batman school supplies; inside or out the Batman backpack is built to last. Officially licensed Batman school supplies. The Batman backpack set also comes with a bonus superhero door hanger!