The Carrand Lug Nut Brush is built to clean any size lug nut. Place the Carrand Lug Nut Brush over a lug nut and twist. It instantly cleans the perimeter of the lug nut and its cavity of all brake dust and road grime. The flexible wire construction allows the brush to accommodate any size lug nut. Then twist your wrist to clean and perfectly detailed wheel. 7 inch length.