I haven't used the brush yet but when I received it I thought it was a bit abrasive for vinyl so I called Biokleen to make sure I received the correct product. The gentleman that I spoke with was very knowledgable and set my mind to ease that this brush would not hurt my vinyl seats on my boat. I will update once I use it. The one thing I can say is that all of my products have arrived within days of my order. They are VERY prompt and curdious!!!