Outdoor play information: Caring for your outdoor play equipment not only protects your monetary investment, but keeps your students happy and safe. Loose playground toys can get lost and could injure a child if left lying around the playground. And balls that are not inflated to their optimum air capacity will deteriorate over time. That's why it's wise to stock up on the supplies necessary to keep your equipment in good working order. Items like a ball locker will keep balls safe and sound in one secure place, and a pressure gauge and inflating pump will help keep your balls and other inflatables as good as new.