I have a set of these, yelliw, 1.7" and they handle very well. The color really pops. They don't
slip through my fingers. Rolling them between my fingers is a breeze. The gimmick is a bit thick
and I wish they were more tapered around where the edge meets the ball but I am working with them
regularly and getting used to it. I'm not a pro but have used The Gorilla Grip balls and liked them
but in my opinion these are MUCH BETTER. The box they come in is very protective and allows them to
be seen through the window on top of the box..