Stainless steel support lab jack is ultra stable lifting platforms, can hold weight as much as 4.5 lbs.
Expandable height range is 1.8″/45mm (lowest) to 6″/150mm (highest).
Adjustment knobs provide smooth and accurate height adjustment, easy to operate.
Bottom panel has 4 sponges prevent galling and reduce noise.
Application: It is widely used as a supporting instrument to adjust height of objects such as alcohol burner and so on in chemistry, physics and other scientific objects. Or in home daily usage.