 like the size of someone's head, and maybe even bigger. And they would roll it on the ground from the pitching mound. You play it in a flat schoolyard, any flat surface, and you rolled it on the ground, and the batter, the guy who was going to kick it, was waiting for the ball, and you'd roll it towards the kicker, and the kicker would just haul off and kick that thing and run to first base.