This instrument is used to measure the thickness of textiles and textile products. It is suitable for measuring the thickness of various woven fabrics and knitted fabrics, and can also be used for measuring the thickness of uniform thin materials. It is a necessary testing instrument for cotton weaving, knitting, bedclothes, handkerchiefs and papermaking industries.

GB/T3820-1997 "Determination of Thickness of Textiles and Textile Products"