Gauge is not terribly important as the items is felted and you control the size by how much you felt it. Just make sure your stitches are loose and watch it closely in the felting process, keep a can to check size close by. An 11.5 mm crochet hook is needed to bind off the top, or you can bind off very loosely with a traditional knit bind off. You should have enough for two cozies in one skein of Brown Sheep Lambs Pride Bulky.