The Extra Large Embroidery Hoop SA441 has a maximum embroidery area of 10.5" X 6.25". This is the hoop to use for those larger designs. This Hoop can be used with a NV4000D and 4500D, however we recommend that you update this model to version 2.02 or later. This update ensures that you will not embroider outside the embroidery area of this hoop. For Use With: Innov-is 1500D, Innov-is 2500D, Innov-is 2800D, Innov-is 4000D, Innov-is NQ1400E, Innov-is NQ3500D