Set of 4. Good Measure Templates feature a special nonslip backing and clearmarkings in two colors. They are wider than nested templates, making them easy to hold. To use the internal shapes on this template set youmust be able to lift the machine's presser foot. These templates are designed for ruler feet that are 1/2'' in diameter. This set gives you 4 internal circle shapes in 1/2’’ increments, quilting circles from 1/2’’ to 3’’, and 4 external circle shapes in 1/2’’ increments, quiltingcircles from 5-1/2’’ to 7". Use this set with Every Semicircle Sets 2 and 3 for a full range of circlesizes.