7" (18 cm) locking embroidery hoop is perfect for punchneedle embroidery or any hand embroidery. Special lip on the inner hoop grips the fabric firmly when the outer hoop is tightened, keeping the fabric taut. Special cover over the tightening screw on the outer hoop keeps your thread from tangling in the screw. Can be used with the Clover Embroidery Hoop Stand (#6970B).