Japanese garage kits are often anime figures depicting popular characters. Another major subject is " Kaiju " monsters such as Godzilla, and they may also include subjects such as mecha and science fiction spaceships. Garage kits can be as simple as a one piece figure, or as complex as kits with well over one hundred parts. Most commonly they are cast in polyurethane resin, but may also be fabricated of diverse substances such as soft vinyl, white metal (a type of lead alloy) and fabric.