Large Embroidery Hoop for Select Brother Machines - Replaces Brother SA434 Large Hoop Huge embroidery area of 6.75" x 4" Combine several small designs to create a larger design without re-hooping Full metal adjustment screw secures a wide variety of fabrics -- No plastic parts Clear, green-ink grid included for accurate alignment This is a generic hoop that is a perfect replacement for the Brother SA434 hoop.