Old school, but I find it so much better than pin-basting. Breaks easily for easy removal after quilting. White so it won't rub off color on your quilt top.
It's what I machine piece EVERYTHING with. Neutral color (it goes with everything) and fine for better seams. Yup, thread thickness makes a difference. Try it. You'll never go back.
Also available in black.
Condition your thread for fewer tangles and knots.
Waxed thread frays and tangles less.
Five metal bobbins for Bernina sewing machines. Click for compatible models.