I`m using yarn by Etrofil Organic Cotton for knitting 2 threds together or for knitting in 1 thread - yarn by YarnArt Idea; Circular knitting needles 2.5 mm or 3 mm/(0,10-0,11 inches); Pair of additional knitting needles 2.5 mm or 3 mm/(0,10-0,11 inches); Pins or markers