This part is the replacement belt install tool for your dryer. It comes with two round plastic halves of the tool that are held together with an o-ring (also included). To use the tool, position the two halves of the tool together, and roll the o-ring into the groove to secure. The belt install tool will allow you to replace a damaged drive belt on your dryer. Be sure to disconnect power to the dryer before you begin this repair. This is an OEM part sourced directly from the manufacturer.