While the A5D and A7D detailing brushes are very similar, the A5D has the narrower diameter of the two. The 9.75-inch brush is 1 inch wide and features 2.5 inch-long natural black boar's hair bristles. The bristles are set securely in the textured handle block with epoxy, and taper up from a thick base to a fine tip for a soft, scratch-free finish.
The A7D can be used on all interior and exterior surfaces. The fibers are delicate enough to remove the finest dust particles and sturdy enough for cleaning lug nuts, dashboards, vents, crevices, and other tough jobs. Wheel Woolies recommends storing the brush using the convenient hanging hole in order to protect the bristles from being crushed.