PVC

From Wikipedia:

Polyvinyl chloride, (IUPAC Polychloroethene) commonly abbreviated PVC, is a widely used thermoplastic polymer. In terms of revenue generated, it is one of the most valuable products of the chemical industry. Around the world, over 50% of PVC manufactured is used in construction. As a building material, PVC is cheap, durable, and easy to assemble. In recent years, PVC has been replacing traditional building materials such as wood, concrete and clay in many areas.

Boring.

For our purposes here, PVC is a kind of plastic used to make certain art toys and figurines. It's heavier than vinyl, a little more rigid and because of that a little more brittle. It's mainly used on toys that don't have a lot of moving parts or are molded in one solid piece. Since it's more rigid, it can also be used to make more intricate shapes, so PVC toys are able to have a lot more small detail than vinyl. Most Urban Vinyl figures made of PVC will also be called that - "PVCs"