VEVOR House Floor Jacks, 2 Pack, 12"-16" Height Range, 9700 lbs Max Load Capacity Per Unit, Adjustable Support Beam Basement Jack Post Pole for Leveling, Steel Telescoping Jack for Temporary Support Strong Support Easy Height Adjustment Integrated Base Plate User-Friendly Operation Versatile Use Rust-Resistant Finish Base/Top Plate Size: 4 x 6 in/101 x 153 mm,Max Load Capacity (Per Unit): 9700 lbs/4399.85 kg,Item Model Number: 204A-0045-01-00,Quantity: 2-Pack,Adjustable Size: 12-16 in/30.48-40.64 cm