content: This toy is by far our favorite! I don't know how many hours total our son has spent hammering the balls and then watching them go through the maze. Sometimes he uses the hammer, sometimes he just pounds them with his hand. The hammer isn't that hard, so when he does decide to hammer Dad's head, it doesn't hurt that much :-) If your child is less than 1, it will take a few days playing with the toy before he/she masters it and pounds the balls with confidence (they LEARN the toy). If we had 1 toy to take with us on a trip, this would definitely be the one. Highly recommend.