This is a brand new Sewing Machine Lower Looper , Part # 410452

Compatible with Singer Serger / Overlock Machine Models: for 14U12A,14U32,14U34A,14U44,14U46, 14Y52A,14U64A,14U65,14U85,14U234, 14U244,14U286,14U344,14U444,14U454B 

Compatible with Babylock BL202, BL302, BL400, BL450, Sergemate 300, 430, 432, 4350D, 5030, 5040L

Compatible with Simplicity SL200, SL370, SL803, SL804, SL843, SL4300

Compatible with Omega Serger / Overlock Machine Models: 15J103 & 303SI

Compatible with Riccar RL613, RL613E, RL624, RL624E, RL634E, RL724E, RL734DE, 564DE