The 9-1/2″ x 9-1/2″ (240mm x 240mm) hoop fits numerous types of projects and is particularly useful for embroidery on quilt blocks. Use this hoop in combination with the IQ Intuition Monitoring App. Hoop has a special coded feature that is read by the App so it can transfer information to coordinating machines. There is also a grid to help you precisely align your designs.