Singer Rotary Bobbin item # 55623S
$0.55
Fits Singer models 115-1, 188K, 191D300A, 20U, 20U13, 20U33, 20U73, 20U83, 20U83B, 206K, 206K25, 251, 281, 306K, 306K25, 306W, 319, 319K, 491D200, 491D300, 591D200A, 591D300A