The Cose Round Wooden Embroidery Hoop, 30cm, is a round wooden hoop with a tension screw on the outer rim that allows you to stretch and firmly secure the fabric during embroidery. It facilitates the work by keeping the fabric taut, preventing it from wrinkling or shifting while embroidering, and can also be used as a frame after the work is finished. The 30cm size is a popular choice for those who embroider large pieces or want to use the hoop as a decorative frame after the work is completed.