This Bowling Ball Pusher wheelchair accessory can be used from a wheelchair or a standing position. This mobility aid offers four-pronged steel and aluminum guide and slides gently on alley floor when pushing the ball forward. Plastic caps protect floor surface and bowling ball. Extension handle lengthens for use, shortens for transport or storage. Measures 38 inches (97 cm) long; adjustable up to 54 inches (137 cm). Weighs 4 lb. (1.82 kg).