Singer Black and White Threaded Class 15 Bobbins 42145. 

This set of 12 Class 15 threaded bobbins can be used in Singer and other manufacturer’s sewing machines. 

The pack contains 6 black-threaded bobbins, with 50 yards of thread in each, and 6 white threaded bobbins, with 50 yards of thread in each. 

The reels come in a reusable plastic case. 

All thread is 100 percent spun polyester. 

Washable, colorfast. 

Consult your machine’s manual to ensure correct bobbin size.    

CHK-42145DS