Enjoy your quilting classes longer with the Tushie Cushie! Use an orphan square or create a 12" Block for the front of the slip cover. We'll piece, assemble and quilt our covers and trim the cushion forms to 15". You'll be the envy of all the flat bottomed quilters! The Tushie Cushie has a strap on the back to go around your sewing machine cover or underneath the chair to hold your cushie tight!