Janome Genuine Bobbin Case - YELLOW DOT
The yellow dot bobbin case has twice the amount of tension as the standard bobbin case (red mark). You can use this bobbin case whenever the bobbin thread is finer than the needle thread, to prevent the bobbin thread from slipping to the top of the work. During normal embroidery, if the bobbin thread is not Janome branded bobbin thread, it is recommended that you use the high tension bobbin case (yellow dot).
Only fits Top Loading models as listed below
MC9900 MC500E MC550E MC400E AT9
Part No. 846652607
