Just a quick tutorial to show how to make split ring with 2 shuttles.

How to read the notation for a split ring?

SR: 6 / 6

SR = Split ring

6 / 6 = 6 DS on left side , 6 DS on right side of the split ring

For the left side, just do the normal DS (flipped stitches)
And right side, do the unflipped DS.

Check my video and learn more.