This drum aid roller is sold independently. Most dryers call for two. The tri-rings are provided. This can be a drum support roller for the dryer. It's a genuine substitution portion. The component incorporates the drum roller only and does not consist of the tri-rings. This section is marketed individually. https://garrettmkhcz.blog2freedom.com/29660005/what-does-furnace-filters-in-markham-mean