Sewtalent Magnetic Embroidery Hoop for PooLin EOM Embroidery Machine Models OnlyProduct Features Super durable and strong: 500,000 times repeated using and strict destructive testing. Idea for all kinds of fabric hooping: Hard to clamp items, like heavy, thin, fragile, stretchy, and elastic fabrics. 8 hoop sizes: 3. 9x3. 9 inch 100x100mm ~ 7. 7x12. 5 inch 195x315mm meet all your needs. Our Customer's Testing Video Product Application Different sizes fit different embroidery needs: Hoop size (inner size ) Actual sewing field 3.