Spiral Celtic designs are a large category of Celtic designs that consist of spirals drawn using arcs. These two designs have been drawn in 2D CAD software, though not authentically, because not only circles, but also spirals have been used for this purpose. In these two designs, the main motif is the double spiral triskelion, set in twelvefold division of circle. The first design is a little more complicated because the blank spaces between the triskelion spirals are filled with double spirals and leaf designs. In the second design, the blank spaces are filled with leaf designs only.
Anyway, Celtic spiral designs are extremely interesting and beautiful, they can be used in many ways, either independently or as part of a more complex design or illustration. Celtic spiral designs were often found within key-pattern borders.