About Perle Cotton:
Size 16 is thicker than hand quilting thread. It is showy without being a show-off and it pulls through fabric well. One 10-gram ball of size 16 perle cotton has approximately 156 yards of thread.
Size 12 is thicker still. It is more visible from a distance but still pulls through the fabric without a fight. One 10-gram ball of size 12 perle cotton has approximately 136 yards of thread
Don't forget to order needles and a needle threader!