Description: Allow you to remove lint easily from dryer duct, reduce drying time, improve dryer performance. Periodically cleaning the duct will prolong the lifetime of dryers. Each pole is 40cm, durable, flexible and bendable, easy to connect and retract. Can be used with or without a power drill. Package Includes: 1 Set Dryer Duct Cleaning Kit（1 brush head and 12 rods）