4.50 mm hook size
Abbreviations:
ch=chain
sc= single crochet
hdc= half double crochet
tr= triple crochet
lps= loops
Foundation: chain multiple of 5 + 2 ch
Row 1:
In the 3th chain from the hook, make half double crochet (hdc), Continue working in the same way until the end of the row.
Row 2:
Chain 3 , turn the work, tr crochet in the 2end st, tr crochet in the 3th st, tr crochet in the 4th st, yarn over, (5 Ips on hook), 1 sc into the next stitch, thread over and pull through all lps at once
Row 3:
Ch 2, 1 hdc in the first chain from hook, hdc into each ch across
Row 4:
Chain 3 , turn the work, tr crochet in the 2end st, tr crochet in the 3th st, tr crochet in the 4th st, yarn over, (5 Ips on hook), 1 sc into the next stitch, thread over and pull through all lps at once
Repeat row 2 and row 3
Video tutorial