Hydrobat Hump Moulds Fit
onto standard 10" centered wheel head pins. Simply lay a slab of clay on top of the hump
mold. Think of it as throwing the backside of a form. You will still have to
throw a foot by gathering clay from the slab or by attaching a coil and
compressing it to the back.See You Tube
Video
TMH16 16" dia. x 3.5" deep $64
TMH15 15" dia. x 2.5" deep $48
TMH12 12" dia. x 6" deep $50