Consumer durable goods usually have a significant lifespan, which tends to be at least one year, based on the guarantee or warranty period. The maximum life depends upon the durability of the product or goods. Examples include tools, cars, and boats. On the other hand, capital goods, which are tangible in nature, such as machinery or building or any other equipment that can be used in manufacturing of final product, are durable goods with limited lifespans that are determined by manufacturers before their sale. The longevity and the often-higher cost of durable goods usually cause consumers to postpone expenditures on them, which makes durables the most volatile (or cost-dependent) component of consumption.