Heavy duty jack chain can be used for a variety of indoor gardening applications. New design allows for individual links to be easily opened with pliers. Great for hanging reflectors, light fixtures, carbon filters and ventilation equipment. Zinc coated steel. 100’ Roll weight: 8.5 lbs. Trade size: 12. 200’ Roll weight: 17 lbs. Working load: 29 lbs. Breaking load: 115 lbs. Sold in full rolls only.