Koch 713926 Machine Straight Chain, Trade Size 2/0 by 50 Feet, Zinc PlatedFrom the ManufacturerMachine Straight chain has a shorter link for compactness and flexibility and is typically used in farm and industrial applications. This chain is zinc plated and measures 2/0 by 50 feet. The safe working load limit is 545 lbs. Do not exceed the working load limit.