Specification Packing: 1PC Material: aluminum alloy Folded size: about 90x26mm/3.54x1.02in, unfolded size: about 90x83mm/3.54x3.27in Sturdy, durable, stable structure, durable and practical, long service life. Can be adjusted within 90mm height range, very convenient to use. Easy to use, the height of the bracket can be manually adjusted according to the needs, and it can carry heavier measuring instruments. Suitable for all kinds of level gauges, ground measuring instruments or other laboratory equipment.