Height adjustable: the height can be adjusted using a knob, allowing for precise leveling in physics, chemistry, and biology experiments. High-quality material: constructed from durable aluminum alloy, offering high hardness, rust resistance, and long-lasting performance. Adjustable height range: 30–90mm, providing flexibility for various experimental setups. The stand can be manually adjusted as needed. Compatible with a variety of spirit levels, measurement tools, and laboratory equipment. Ideal for use as an auxiliary measurement tool in laboratory or workshop environments. Suitable for small equipment used in physical, chemical, and biological experiments. Durable and stable construction ensures reliable performance and long service life. Color: Black Material: Aluminum alloy Dimensions: Collapsed size: 90 x 90 x 26mm Extended size: 90 x 90 x 90mm Adjustable height range: 30–90mm Package includes: 1 x scissor lift table Note: The package includes only the items listed above. Other accessories are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance: ±1–3cm.