Husqvarana Viking Mid Size Hoop # 412 66 55-01 * Size 6.75 × 4 (170 x 100 mm) * Fits these Viking Embroidery Machines: Designer Diamond, Designer Ruby, Designer Topaz 30, Designer Topaz 20, Designer I, II, SE, LE, Quilt Designer II, Platinum Plus, Platinum 950E, 955E