Coaches feed entire lessons from this 200-ball tennis hopper cart, pairing a durable nylon basket with a 304 stainless steel frame that resists rust on dewy morning courts. Four rubber swivel wheels roll smoothly across turf, dirt, and hard courts, and two locking brakes hold the cart steady during drills. The frame folds flat for car trunks in seconds without tools, and the included storage bag keeps balls and accessories together for training or teaching.