The yarn gauge is for measuring the amount of yarn needed to rug punch or hook a given rug design or pattern filling in with 1/4 inch high loops.
The tool has a 3 inch square open area in the center with an attached handle. A right handed or left handed person is able to reposition the open area over a section of the design.
Open area equals 1 oz of most yarns
filling area with ¼ inch loops.
1 oz = approx 28 grams
The rug yarn gauge is constructed of wood and is proudly made in the USA.