Katch-a-Kup is a classic kid’s game that's great for helping kids enhance eye-hand coordination. Simply swing the tethered ball up in the air and catch it. But wait, there’s more. You can use the dominant hand as well as the off hand. You can remove the ball, and just play catch between multiple players. Even balance other objects on the cup itself. It is made out of super-durable, yet pliable, polyethylene. Assorted Colors. One cup included.