Material: N/A Assembled Product Height: 96" Assembled Product Width: 4" Diameter: 4" . Removes lint build up and debris For use with or without a drill For use in dryer and other general duct cleaning Extends up to 8 foot length for easy deep cleaning of dryer duct Helps keep dryer vent clean of lint and debris Encourages safe unrestricted airflow Attaches to any power drill