Start with the foundation chain: 35 ch.
Then from 2nd stitch: 15 sc, 4 ss, 15 sc. Turn, 1 ch.
work in front loops only ( FLO ): ( 15 sc, 4 ss, 15 sc ) * 6 times
Finally, work 7 ss to connect the two ends, 1 ch.
Wrap the rest of the yarn several times in the middle, and tighten to secure.