I'm a newbie and I'm sure someone will get a chuckle out of how stupid this question is, but, I cannot find the answer. 
How do I know what *class* my bobbins are?
:
I want to purchase additional bobbins for my machine as I only have two and they each have a lot of different color thread left in them. I cannot find anywhere in the manual or on the machine website what class they are. I've seen class 15 and 66 on packages at the store.
I have a Brother LS-1217 machine if anyone else has one and knows this.
Any information would be greatly appreciated!
TIA
:

How do I know what *class* my bobbins are?
:I want to purchase additional bobbins for my machine as I only have two and they each have a lot of different color thread left in them. I cannot find anywhere in the manual or on the machine website what class they are. I've seen class 15 and 66 on packages at the store.

I have a Brother LS-1217 machine if anyone else has one and knows this.
Any information would be greatly appreciated!
TIA
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