Height adjustable: the height can be adjusted using a knob, designed for adjusting the height of objects and leveling in physics, chemistry, and biology experiments. High-quality material: made of high-quality aluminum alloy, offering high hardness, rust resistance, and corrosion resistance for durable performance. Adjustable height range: 30-90mm, allowing manual adjustment as needed for convenient use. Compatible with various spirit levels, ground measurement tools, and other laboratory equipment. Ideal as an auxiliary measurement tool in laboratory settings. Suitable for small equipment used in physical, chemical, and biological experiments. Durable and stable construction: provides excellent stability, corrosion resistance, and long service life. Color: Black Material: Aluminum alloy Dimensions: - Closed size: 90 x 90 x 26mm - Extended size: 90 x 90 x 90mm - Adjustable height: 30-90mm Package Contents: 1 x Scissor lift table Note: Light reflection and differences in display screens may cause slight variations in color compared to the actual item. Measurement may vary by +/- 1-3cm.