Use your rotary cutter to make perfect circles (6"-17"). Cut arcs, frames and circles, using a 45mm rotary cutter. Use the Cut A Round to make Circle A Round, New York Beauty and Drunkard's Path. Fold fabric into fourths, align, and cut. Uses either a 45 mm or 28 mm rotary cutter. 'The Cut A Round Tool' by Phillips Fiber Art, for 6" - 17" circles.