The lab jack scissor stand platform is made of high quality stainless steel, It have hign load bearing, bearing up to 10kg, the stretched length in 75mm to 225mm (3 inch ~ 9 inch). Widely used for height adjustment of physics, chemistry and biology experience instrument. Feature : Made of high quality stainless steel, ensuring it durable, corrosion resistant and sturdy constructed. Experimental lift for regulating the height position of the object A support apparatus. With adjustable the screw knob, you can adjust the platform to the desired height. For physical, chemical, biological experiments small equipment. Specifications : Material : Stainless Steel Size : 6 x 6 inch (150 x 150mm) Stretched Length : 75mm ~ 225mm (3 inch ~ 9 inch) Loading : 10Kg (Max) Package include : 1 x Stainless Steel Laboratory Support Scissor Jack Lifting Platform Note : Kept clean and dry after use and stored in a cool, dry, non-corrosive environment. Inch