Disney Cars Mini Toddler Preschool 11” Backpack, Water Bottle, and More! (Disney Pixar Cars School Supplies Bundle). Deluxe Disney Cars Backpack for Toddlers features adjustable shoulder straps, zip closure compartment, and top locker loop for hanging. Toddler Backpack measures approximately 11" x 8" x 4" -- the perfect size kindergarten or preschool backpack for back to school. Sure to delight any fan of Disney Cars and Lightning McQueen. Bonus Beach Kids water bottle and superhero door hanger included! Minimum Age Grade: Over 3 Years of Age.