The Quilters Select pre-wound bobbins have been a huge hit with quilters and embroiderers! Now you can buy the 80wt Class 15 bobbins in three sets of 40 bobbins each! One set gives you multi-color bobbins, another gives you all black and white and another gives you a range of neutral colors! Bobbins are the popular Class 15 size and include 135 yards on each.