: Steel jacks (roof jacks) used for sale, complete set. : Peace, mercy, and blessings of God be upon you, For sale: A quantity of used steel jacks (contracting roof jacks), in good structural condition and suitable for direct use in casting and construction (the pin and thread are working and clean as shown in the attached pictures of the jack. Condition: Clean used (free from significant dents). Sale: The entire quantity as a bulk lot (selling all together). Most of them were used only once, and the highest offer reached 33, and the price is close.