Tourna Tenn-Tube, Clear with 21 Stage-1 Green Balls: * Saves your back from bending to pickup balls * Patented locking band holds balls in * Built-in fence hook for off-court storage * Perfect for kids and clinics * Great companion for ball baskets and ball machines * Made of plastic * Lightweight and durable * Includes 21 Stage-1 Quick Start kids" balls * Stage-1 low-compression balls bounce 25 percent slower than regular tennis balls * Stage-1 balls are ideal for ages 11 and up