The "Mini Cup" is about the size of a shotglass. Fits easily in your pocket!
I have two larger cups but this my favorite. My cup is copper so it looks kinda magical. I use a 3/4 inch ball which for my final load I use a 1 1/2 ball. Very startling to the spectators. I keep to the Don Alan handling of this cup. Not to fancy like loading a sponge lemon or such. Great close-up item