I am no expert with clay bar work so this is JMHO. The speed clay 2.0 is not as advertised. I bought it because the only other time I used clay on my car I dropped it. After going through too many clay bars I gave up. This product says you can get it dirty, wash and continue on. Well that may be true but after hours of work (WENT OVER THE CAR TWICE) the finish was not what I had hoped for. I should have gone to a vary aggressive bar to start and then a finer one. The 2.0 has a handle so to speak which was appealing to me with my arthritic fingers. The problem is that it is not flexible enough to get in around things like the wipers, sail panels and wings. I can not recommend this product.