Descripition: Condition:100% Brand New Material: 6061-T6 Structural Aluminum & Stainless Steel Finish: Black Anodized Fits round or square tubing 1 - 2.5 inches in diameter The high lift jack brackets have 3 pair U-bolts with 3 different sizes and enough lock washers and clamp nuts, which can meet your need. Simple Installation - The high-lift jack tube mounts could attach the jack securely to the tube bumper, bull bars,crash bar. Easy to install without drilling a hole in your vehicle. Package including: .