Easy Operation: Embroidery hoops have a brass adjustment screw that you can tighten when necessary to keep the fabric as tight as a drum. Special design that upgrade screw head is bigger and a ridge design in embroidery ring for tightening Unscrew to release the inner hoop, place your chosen fabric over the inner hoop then lock into place with the top hoop and screw in to tighten. Different sizes suitable for different sized embroidered cloth Once the project is finished, embellish the edges with lace, paint, gems or other such materials and use it as a display frame