The Graham Field-JB0150-013-4 John Bunn Cylinder Cart by Graham Field is a heavy-duty mobility solution designed to securely transport D or E size oxygen tanks. Constructed from high-strength steel with a silver vein hammertone finish, this cart offers long-lasting durability and resistance to chipping. It features a push-button height adjustable handle to accommodate various users and a large 6-inch wheel design for smooth maneuverability over different floor surfaces. The integrated mask hook and non-slip hand grip ensure a safe and organized experience for patients requiring oxygen therapy on the go.