Make adjustable ring {see Special Stitches}.
Rnd 1 [Sc, ch 5 in ring] 5 times, sc in ring, ch 2, dc in first sc of rnd to join, tighten ring, do not turn. 6 sc, 5 ch 5, 1 ch 2, 1 dc
Rnd 2 Ch 1, sc around body of dc just made, ch 6, *sc in ch-5 sp, ch 6; rep from * around, join {see Special Stitches}, do not turn. 6 sc, 6 ch 6
Rnd 3 Ch 5, counts as (dc, ch 2), (dc, ch 2, dc) in same sc as join, ch 3, sc in ch-6 sp, ch 3, *(dc, ch 2, dc, ch 2, dc) in sc, ch 3, sc in ch-6 sp, ch 3; rep from * around, join in first dc of rnd, do not turn. 18 dc, 12 ch 2, 12 ch 3, 6 sc