Head mold 12 inches can be rolled rod, as long as the right rod.
So-called head just as its name implies is a new mould, over production of a virgin, because of the silicone mold in production will be a loss so a set of 20 to 30 sets of mould production, because abrasive typically draw on mother a parting line (pencil or marker) then the line will on the mold to production parts, generally only the first, of course, will have a few. So if you see a pencil or red and black lines on the head mold is also the front several sets.
A head mold in a barbershop is a prop used to help the barber practice his hairdressing skills. Or is a style, let everyone more intuitive can see a hairstyle of sensory modeling. It was used by barbers and apprentices to practice and improve their skills.
