The embroidery frame is made of polypropylene mount and clamps, with good performance and long service life. Easy to Use: The cross stitch frame is convenient to assemble and disassemble, easy to use and store. The ribbed inner of the clamps hold the tension for your preferred adjustment. Ideal and Wonderful: The clamps hold your work tight, ideal and wonderful for your cross stitch and craft. How to Use: No need to stitch your work to the frame. Remove the clips from the frame, lay the fabric over the frame and gently place the clips over the fabric then push down to secure over the tube. Widely Application: The square embroidery hoop is an universal clip frame for embroidery, quilting, cross-stitch, needlepoint, silk-painting.