Used with a rechargeable power drill, this brush makes quick work of cleaning large numbers of two, three and four quart nursing bottles. Soft nylon bristle brush will reach every corner and bend of the bottle. Brush has a mixture of type 6.6 and 6.12 soft non-scratch bristles. We recommend running the drill at low to medium RPM for maximum life of the brush. 18.5” overall length, 5.5” wide. Wt. 6 oz.