Lightweight foldable tennis ball teaching cart keeps up to 150 spheres within easy reach so you can run drills without constant bending. The aluminum tube frame with an X-shaped structure supports up to 66 lbs while staying light enough to move and fold quickly. A removable Oxford cloth bag with mesh panels and dual zippers lets you see and access spheres easily and lift it off the frame when needed. Four universal wheels, including two lockable ones, roll smoothly and park securely courtside.