Scrap metals are recyclable and other materials that are left over from different types of product consumption such as parts of vehicles, building supplies and surplus materials. Though it is often confused with waste, scrap has significant monetary value in places like Colusa. Overall, the scrap industry processes tonnes of recyclable materials every year. The proper disposal and recycling of scrap metal is done by a business or service. Usually a "scrapper" advertises his services to conveniently remove scrap metal for people who don't need it, or need to get rid of it.