JUGS Protector™ Series Wheel Kit enables one person to easily move BLACK Protector™ Series screens by themselves. Quickly attaches to JUGS BLACK Protector™ Series Screens ONLY To engage wheel kit, simply lift screen directly above the wheel kit and kick the wheels under the screen—it's that simple. The perfect addition to our hitting facility tough BLACK Protector™ Series Screens. NOTE: Protector™ Series Wheel Kit will not work with Protector™ Blue Series, Standard, Fixed Frame or Quick-Snap Protective Screens.