Hello Wai here from Malaysia. My very first wire armature. Took me an hour plus to make it. I know it is not even close to 'good'. Far from it. I do not have anything but 18 gauge to work on. It is 1 1/2 inch to one cranial unit. It is about 17 inch. Have been around most of the hardware stores here at my home city IPOH. Most of the people thought I must be crazy. They only have steel wires. I have long way to go before I start applying the clay. I do not have enough clay to work on either so I will reinforce the armature with aluminum foil. Guess lots of but not too much aluminum foil.