Actually not just Mr Men but Little Miss as well. The featured Mr. Men characters are Mr. Bounce, Mr. Strong, Mr. Bump and Mr. Noisy. There are eight different characters shown on these large plastic dominoes in all with the other four being from the Little Miss collection of books, Little Miss Naughty, Little Miss Sunshine, Little Miss Splendid and Little Miss Chatterbox.
It is still a good game though. I play with my three year old son and we always end up with no dominoes left at the end.
I like the game because the tiles are easy to handle, sturdy and the game itself is a good introduction for a toddler to the principle of taking part and to get him thinking about game play. It isn't a competitive game (well not when we play).
There are no numbers on the dominoes just pictures of the different characters to match up, like normal dominoes and each character has it's own 'double' domino.
The set of dominoes comes in a cardboard box (as shown in the picture) where the top has flaps and a small plastic window an open top lid that is very sturdy too and would be hard for a toddler to tear and therefore leave the box without a lid.