Experience the effortless one step method to hoop and align fabrics. The secret of this magnetic hoop is in the patented design. It's perfect for Terry cloth, Bulky fleece, Quilt sandwiches, Heavy fabrics. 5 Series: 500E, 535E, 540E, 560E, 570QEE, 570QEESE, 580E, 590E, 590 7 Series: 700E, 720E, 740E, 750QEE, 770QEE, 770QEE Plus, 770QEESE, 780E, 790E, 790E Plus, 790E Plus 8 Series: 830E, 880E, 880E Plus, 880 Plus.