C-Magic's Convertible Top Brush is not the first or only brush on the brush market. Some even claim to be used for convertible tops?? Our's is JUST the FIRST to be TESTED and DEVELOPED by a detailing company and to be offered in a convertible top kit as far as we can tell! There are many issues around a a convertible top brushes - fiber length - fiber stiffness - abrasiveness - is the design easy to use - awkward? Even the brush manufacturing - are the seams smooth, no rough edges to damage your top?? All of these things went into our brush - you'll feel secure using it and your top will thank you for it!!!!