Sew Tech Embroidery Hoop Viking Spring Hoop 4 X 4 (100 X 100 Mm) Sew Tech OEM Quality Replacement Hoop Sew Tech hoops are high quality, durable and an excellent value.A greatchoice for replacing hoops or having extra hoops to speed up your embroidery projects. Size4  4 (100  100) Fits these Viking Embroidery Machines:Designer Diamond, DesignerRuby, Designer Topaz 30, Designer Topaz 20,Designer I, II, SE, LE, Quilt Designer II, Platinum Plus, Platinum 950E, 955E