I bought the 2" brush and like it very much. It was helpful to get in between the wheel openings to clean out the barrel portion of the wheel as mentioned above. It effectively cleaned up the whole wheel about as well as if I had taken the wheel off the car and washed it separately from "inside". It was the right size to get between the caliper and the wheel so I got a thorough clean without having to roll the vehicle back and forth to get at all parts of the wheel. One thing, though....when dry the 2" brush really only measured 1 1/2 inches in diameter. The handle has a very thin diameter of about 1/2 inch which seemed to cause a bit of hand fatigue after cleaning all 4 wheels....fine for me as a weekend-washer, but might be more tiresome for folks who crank out several cars a day. I think if I see the 3" brush go on sale I might buy it too.

I bought the 1" version to specifically clean the tight inside corners of wheel using the tip of the stick but the end of this stick is STICK! It probably works well when using the side of the brush but the tip of the brush is unusable. If your application allows you to pass the brush through the part being washed it will work but to clean a tight hole or corner its no good.

That said, I will use it for other tasks. I did get a bottle of CB static wipe in my order for free so that helps me swallow the $11 this brush cost.

These are great, They knock the brake dust off the wheel so easy and the different sizes accommodate so many wheels.

These wool brushes are amazing!! I use the big one for cleaning barrels of maintained wheels or wheel wells. I feel the wool will hold up well! Buy all three, you will not be disappointed!