Metal Jax Play Set _ Bundle of 5 Identical Sets Metal Jax Set with 8 shiny metal jacks and one bounce ball. Great game of skill. This is a bundle of 5 IDENTICAL sets of jax. Involves bouncing ball and picking up one jack, then increasing to picking up two jacks etc. See how fast one can go from picking up one jack to picking up all 8 jacks in a single round. Time tested game of skill going back many generations.