Pattern : start with 4 chain and double crochet in the first chain
the next working in dc ....
*2sc(single crochet),sc loop(single crochet loop stitch), 2 dc(double crochet),2 tr( treble crochet), 4 chain sc*
turn back and repeat the previous until ,
we continue to work on the dc with 4 sc & slst .....and turn back ( see the video how)..
then work 4 passing the hook in the middle in each chain, *2sc(single crochet),sc loop(single crochet loop stitch), 2 dc(double crochet),2 tr( treble crochet), 4 chain sc*...
repeat the above procedure accordingly the length of our creation.