Product Description Sumner ST-801 Hi Heavy Duty Jack w/Vee Head From the Manufacturer Sumner ST-801 780375 Heavy Duty Hi V-Head Style Jack Stand (2,500-lb Capacity). The first commercially produced Jack stand constructed of rugged 1-Inch steel tubing, tested by independent labs for excessive loads. Features a strut tension plate for superior lateral support. Also designed 1-Inch square tube base construction. Applications: Welding of heavy pipes, shapes, solids and rounds. Specifications: Pipe size: 1/8-Inch to 36-Inch, Lifting height/Take-Up: 28-Inch/49-Inch. Includes one ST-801 780375 Heavy Duty Hi V-Head Style Jack Stand.