This pattern is worked in feltable wool yarn, in stockinette stitch, short rows, and some simple crochet stitches. The size of your finished animal will vary depending on the size yarn that your choose, and the size needles. I use a heavy weight 3 ply yarn, or 2 strands of regular weight wool and size 10 ½ needles. My Brandy is worked in approximately 150 yards of gray, and 50 yards of white wool although there are few brachiosaurus breeders around to argue confirmation, so use any color you desire. Remember to double the amount of wool you purchase if you use 2 strands of regular weight wool. Baby weight wool and size 1 or 2 needles will result in a baby brachiosaurus.