.5 fl oz of silicone thread lubricant which won't leave marks or stains on fabric. Apply 3-4 stripes of lubricant to cone of thread.

Sometimes an older cone of cotton will get dry and start to break on your when you are trying to use it in your machine. Applying a little of this Sewer's Aid thread lubricant will give it new life so you can easily use it with you machine. Every quilter should have a bottle of this in their studios for the "just in case" times.