Why hop when you can mow. Inspired by the old manual lawn mower, this ball hopper makes picking up #tennis balls a fun activity onto itself. A piece of #equipment coaches should consider as it doubles as a standalone cart for teaching.
Tennis Ball Boy – Tennis Ball Collector by Yunjo Yu and Seonghyun Kim - To make things more efficient around the Tennis Court, we have here the Tennis Ball Boy, an automated ball collector. Read more at http://www.yankodesign.com/2014/07/30/the-ball-boy/#Xuzdf1RjCdSJKDOt.99