The Thread Catcher Bag conveniently attaches to your long arm, sewing cabinet or portable table, and your sewing machine or serge with Velcro, catching your threads and scraps. Similar bags that are weighted typically fall on the floor or take up valuable work space. The Thread Catcher Bag stays put! It's also a great gift as it makes up in about an hour! SIZING / FINISHED MEASUREMENTS 4" x 7"