My Little Pony Mini 10&rdquo; Backpack Set - Includes Water Bottle and Stickers 10 Backpack designed for Toddlers and Pre-Schoolers. 1 Main Zipper Compartment. 2 adjustable back straps - For a perfect fit! Also includes: My Little Pony Water Bottle. Plus a huge box of stickers to decorate everything with My Little Pony.