Check the listing for details. Unibilt Mk01 Manual Trolley. Condition: New – Open box. Listed at 110.00 USD. The Unibilt Mk01 Manual Trolley is a reliable and sturdy conveyor system designed for material handling in various industrial and business settings. This manual trolley is equipped with a durable construction and smooth operation, making it a valuable addition to any conveyor system. With its efficient design and functionality, the Unibilt Mk01 Manual Trolley ensures the safe and precise transportation of materials, making it a essential tool for streamlined operations.