Saw 2 sizes. This one is 4.7 cm (a hair over 1 3/4") and he has a larger 5.7 cm (2 1/4"). This smaller one fits at least 3 of my smaller Chop Cups just right. Also, looks exactly like the White Baseballs (chopped, and unchopped for that matter) that I use in these routines (also by Smetsers). Although I really like my Mike Rogers 1" hand sewn baseballs for my cups and balls, I was never able to find a chopped set after they discontinued. There is a very noticeable difference in the two makers baseballs. I will have to stick with the consistency of Leo Smetsers line now.

Very nice size, shape and feel. Looks realistic, unlike plastic or rubber baseballs out there. Will soon be getting a second one for a version of the chop cup that I have seen James Swain perform (may be a Larry Jennings effect).

Original Mike Rogers' baseballs have nothing on these! Come very highly recommended!