Attaches this Bi-Level Flow Through Brush to a telescoping pole allows you scrub and clean the hard to reach area effectively. It has a standard threaded hole. 13 inch length perfect for large areas. Feathered-tip soft bristles can gently remove dirt and grime from your boat and RV. Light weight brush so you won't get tired by working with it. Easy care and time saving cleaning tool. Don't forget to grab couple telescoping pole too. It has on/off switch so you can control the water flow.