Comprehensive training device for table tennis: an adjustable retractable design that helps players of all levels improve topspin techniques and build muscle strength. Adjustable length and angle: can be adjusted to suit different heights, making it accessible for both beginners and advanced players. Durable construction: built from sturdy plastic and metal materials to withstand regular use and provide longlasting performance. Easy installation: features a fixing clamp for quick setup on any table, allowing you to focus on improving your game without hassle. Use scenario: solo topspin practice on a standard table to refine spin and control, adjusting height and angle as needed. Use scenario: simulate returns from opponents of different heights to train timing, footwork, and consistency. Use scenario: progressive drills for skill development and strength building, suitable for routine training sessions at home or in the club.