From Amazon
Kärcher Rotating Wash Brush WB 130 with Universal Brush Attachment, Accessories for Kärcher Pressure Washer K 2-K 7, Interchangeable Brush Attachment, Application: Windows, Garden Furniture, Vehicles
OnBuy
Kärcher Rotating Wash Brush WB 130 with Universal Brush Attachment, Accessories for Kärcher Pressure Washer K 2-K 7, Interchangeable Brush