Guaranteed to fit Babylock sewing machine models:
BL6300, BL6800, Creative Pro BL37

Guaranteed to fit Brother sewing machine models:
Boutique 17, Boutique 27, Boutique 37, Campus 200, PS-2250, PS-2360, PS-2470, PS-3100, PS-3700, PS53, PS55, PS57, RSR55, Star 230E, Star 230EQC, Star 240E, Star 35, Star 45, Star 50, Star 55, Star 60, Star 65, XL6600, XL-6040, XL6041, XL6042, XL6043, XL-6050, XL6051, XL6052, XL6053, XL-6060, XL6061, XL6062, XL6063, XL-6452, XL6462, XL-6562, XR-46, XR-65T, XR46C, XR52C, XRX55

Alternate Part Numbers: X59101122, X59101152