SuperFly and Perfect Hatch Threads

The SuperFly 3/0, 6/0, and 8/0 are all much thinner other brands of thread labeled as these sizes.  They are very strong for their very thin diameters with no noticeable stretch. 

For Perfect Hatch I only have Black 3/0, 6/0 8/0 . 

SuperFly comes is some great colors, 3/0, 8/0, 6/0 for most colors.