A PVC Christmas tree is a type of artificial Christmas tree made from PVC (polyvinyl chloride) which is a type of plastic. PVC trees are popular because they are affordable, easy to assemble, and can be reused year after year. They come in a variety of sizes and styles, including slim and full-size, and can be decorated with lights, ornaments, and other decorations. PVC trees are a great option for people who want the convenience of an artificial tree without the cost and maintenance of a real tree.