HONEYSEW Sliding Buttonhole Foot with Sizer can help you lock the size of the buttonhole
It works Brother Sewing Machine Models: 5100, BM2600, BM3500, BM3500T, BOUTIQUE 17, BOUTIQUE 27, BOUTIQUE 37, Campus 200, Comfort 10, Comfort 12, Comfort 15, HQ17, HQ27, J17, JS2130, JS23, JX1710, JX2517, L14s, L15, L25, L35, LS1520, LS17, LS2000, LS2020P, LS2125, LS2125B, LS2125I, LS-2129, LS2130, LS2150, LS2160, LS2250PRW, LS2300PRW, LS2320, LS2350, LS2720, LS2725, LS2820, LS2825, LS2920, LS3125, LX1700, LX2375, LX2500, LX3125, LX3125E, LX3817, LX3817A, PC-15, PS21 Pacesetter, PS2250, PS2360, PS2470, PS3100, PS3700, PS53, PS55, PS57, PX100, PX200, PX300, RS11, RS15, RS5, RS7, RS9, RSR55, SB170, SF100, SF200, SF250, SF300, SL7, SM1704, STAR 230E, STAR 230EQC, STAR 240E, STAR 35, STAR 45, STAR 50, STAR 55, STAR 60, STAR 65, Vesta Ministar Pink, Vesta Ministar Blue, Vesta Ministar Rose Violet, Vesta Ministar Rose Wine, VX1435, VX847, VX870, X5, XL2120, XL2120PRO, XL2121, XL2130, XL2130NT, XL2140, XL2150, XL2220, XL2220NT, XL2220PLUS, XL2230, XL2240, XL2250, XL2600, XL2600I, XL2610, XL2620, XL2630, XL2650H, XL3010, XL3022, XL3100, XL3500, XL3500I, XL3500T, XL3510, XL3510T, XL3520, XL3750, XL3800, XL4010, XL4011, XL4012, XL4013, XL4014, XL4015, XL4020, XL5010, XL5011, XL5012, XL5020, XL5021, XL5030, XL5031, XL5050, XL5100, XL5130, XL5200, XL5232, XL5300, XL5500, XL5600, XL5700, XL6040, XL6041, XL6042, XL6050, XL6051, XL6052, XL6053, XL6061, XL6062, XL6063, XL6462, XL6600, XN1700, XR31, XR32, XR46, XR46C, XR52C, XR65, XR65T, XRX55, XS37
It works Singer Sewing Machine Models: 1105, 1107, 1116, 1120, 1130, 1304 Start, 1512, 1525, 1748, 2250 Tradition, 2259 Tradition, 2263 Simple, 4411 Heavy Duty, 44S, 8280, 85SCH, XL6060, XL6452, XL6562