This Large Thumb Screw for Brother (XC5553051) fits a range of Babylock and Brother sewing machine models, ensuring reliable and effective results. Guaranteed to work with Babylock BMCAP, BMY6, BND9-2, BMP6, BMP8, BMP9, BMV10 Valiant, BMVT10, BNT10, EMP6, Endurance BND9, as well as PR600, PR600II, PR600C, PR620, PR650, PR650C, PR680W, and PR1055X Brother models. The corresponding smaller XC5817051 is also available here.