These small, typically metallic, discs signify a pre-paid type of forex particularly for automated automobile cleansing companies. Sometimes bought in bulk or as a part of a service package deal, they’re inserted right into a machine to activate the wash cycle. An instance could be a person buying a set of those previous to visiting a self-service automotive wash bay, utilizing one disc per wash choice.
The significance of this cost methodology lies in its effectivity and operational benefits for automotive wash companies. They simplify transactions, scale back reliance on money dealing with, and might encourage buyer loyalty by means of bulk buy reductions. Traditionally, their use stems from a necessity for a standardized cost system suitable with automated tools, predating widespread digital cost options.