Usage Tips:*Key Features *Heavy-Duty Support: Our house floor jack is built from tough Q235 steel. Each jack handles up to 2500 lbs/1134 kg with ease, perfect for heavy lifting. *Adjustable Height Design: Need flexibility? This basement floor jack features an adjustable height design. It adjusts from 11.6 to 16 in/29.46 to 40.64 cm, so you can find the perfect height for your needs. *Simple Operation: Adjusting the height of the basement jack is a breeze—just twist the nut with a wrench. Quick and easy! *Integrated Welded Base Plate: The adjustable floor jack's base plate is seamlessly welded to the pipe with an integrated welding process. This eliminates the need to fix the base plate to the pipe, making installation simple without extra steps. *Versatile Application: Our floor joist jack offers excellent load capacity and a unique adjustable height design. Ideal for temporary support in various places like bed frames, cabinets, weak floors, and doorways—this jack does it all! *Specifications Item Model Number: 204A-0040-00-00 Quantity: 4-Pack Adjustable Size: 11.6-16 in/29.46-40.64 cm Max Load Capacity (Per Unit): 2500 lbs/1134 kg Base/Top Plate Size: 4.84 x 4.84 in / 123 x 123 mm *Package Content 4 x Floor Jacks