Our lift shackles are constructed of 3/8in thick steel. All corners are rounded to avoid interference problems. New grade 8 hardware is included with each shackle lift, along with detailed instructions. Sold in Pairs. Increase Ground Clearance for on and off-road obstacles. Allows springs more movement and articulation. Features rounded corners to avoid interference problems. Sold in pairs. Backed by Rough Country's Limited Lifetime Replacement Warranty.