Simple to operate with smooth lifting position and rotating handwheel, can be raised and lowered on the front panel, adjust to the required height. For physical, chemical, biological experiments lift the object or instrument, laboratory jack stand is an essential part of a busy lab, 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. The platform can provide quite stable lifting performance, very practical. Adjustable height, maximum lifting height is approx. 25cm/9.8in, front and back are both available. Wide range of application, can be used to move any object or instrument for physical, chemical, biological experiments. Made of high-quality stainless steel, -resistant and easy to clean (It should be kept clean and stored in a cool, dry and non-corrosive place after using.)