PRACTICING PARTNER: This table tennis launcher is auto operate, the large ball exit provide smooth action, not easy to block. You can put it anywhere to train your skill.EASY TO USE: This ping pong ball robot is easy to use, comes with a simple switch, quickly turn on or off. GREAT TOOL: This machine is practical and convenient, for 15 balls (NOT included), your ideal training tool, suitable for beginners, ping pong lovers. PORTABLE DESIGN: This launcher is designed with lightweight body, easy to carry, very portable.