Tatted Edge #2

Uses shuttle only, rings only.

Make a ring of 4ds, 3p separated by 4ds, 4ds, close.
Leave a small space length of thread in between.
2nd ring the same as the 1st.
3rd ring, 4ds, join to last picot of 1st ring, 4ds, 2p sep by 4ds, 4ds, close.
Join 4th ring in the same manner to the 2nd ring.
Continue in this fashion for desired length.