These paintings are produced on a regular Thangka canvas; however, before painting the outline of the depicted Wheel of Life is printed with a wood engraving on the canvas.
This simplifies the painting process and takes care for unique results. This kind of Thangka is called "dpar ma" in Tibetan.
Artistic skills are no longer needed by the artist for this type of scroll paintings, as he only paints the areas between the printed lines with color.
In Tibetan, this thangkart is called "dpar ma".