4 Mini Circles Template for 1/2" Foot Clear with Ruler 1/8" Thick Markings are laser engraved for long lasting use. For use with 1/2" Hopper Foot or by hand Includes 7" Ruler engraved on top 1/8" Thick - Clear Acrylic- Thinner version is great for Embroidery. 1 1/2", 1", 3/4", 1/2" Finished Sizes - Overall sizes 1/2" larger each