Fits Simplicity models 1500, 4700, 7920, S02, S07, S110, S180, S210, SL1000, SA1100, SA1500, SA2200, SL1150, SL1170, SL1200, SL1220, SL1250, SL1270, SL1400, SL1650, SL237, SL2507, SL415, SL6220, SL630, SL640, SL8020, SL8130, SL8220, SL9000, SL9130, SL9150, SL9240, SL9240LCD, SW210, SW2145, SW2145

Bobbins measures 7/16" thick x 13/16" wide.