OZ Lifting Products Steel 500 lb Chain HoistThis mechanical chain hoist is designed for commercial building sites and industrial workplaces, such as warehousing, buildings, storage areas and factories. It features lightweight construction for easy mounting, but offers a high weight load limit. With a roller bearing in the bottom block, it allows users to turn the load without turning the load chain. It also features cast forge steel hooks and heavy duty safety latches. Zinc plating inside the