The traditional branded Wiffle Ball is around the same size as a standard baseball, but it is hollow, lightweight, made of durable plastic, and no thicker than 1/8 inch (3 mm). The ball does not spin fast enough to be an effective projectile weapon but is capable of flat-out flying through the air. Modern versions are almost identical except that they are colored red, white, and blue, like the flag of America. Wiffle balls were first sold by the Wiggin Company in 1957. They originally came in orange and black, but soon green and white were added as well. In 1960, two new colors were added: red and blue. These last two colors replaced the original orange and black versions which were no longer manufactured. Today, most Wiffle Balls are red, white, and blue, but other colors are available including green, yellow, and purple. The ball is small but acts like a large sphere when in flight due to its low density. This means that more of them can be placed close together without affecting each other's performance. You can calculate how many wiffle balls you need for your game by dividing the number of players by 10. For example, if there are 13 people at the park and you want every player to have their own ball, then you would need 130 wiffle balls.