FEATURES: Ball rebounds off top to create realistic arc and bounce Adapters can be used for beginners, intermediate and advanced players Ideal training device for most racquet sports: Tennis, pickleball, squash, racquetball, paddle tennis, etc. Use at home, club, or school; indoors or outdoors Features locking wheels to easily roll in and out of storage Sets up in 10 minutes without the need of tools Manufacturer's Warranty: 1 Year