The craft of the crochet hook Flora Klickmann, Lesson of Irish crochet, Page 52, Irish borders, pattern - Chestnut Buds, element - large leaf.For this tutorial I've used AltynBasak mercerized cotton threads, size 10 for padding cord and size 50 for the working thread, crochet hook 0.6 mm as a main hook and 1 mm as a support to secure padding cord.