This set includes ALL of the following. Set of 8 External Switch Glo lighted bocce balls. Press once for Flashing press again for Static Glo, press once more to turn off. 4 Glow Green, 4 Glow Red. The same as a traditional bocce set for 2 teams. 1 50mm (2 inch dia) Glow White jack (pallina). Press once for Flashing press again for Static Glo, press once more to turn off. Nylon carry case with webbing handles, 1 set of batteries Instructions and rules of play Measuring string and Tape measure The balls are made of a high quality, durable hard plastic material, with the Playaboule logo molded in. Because the balls are translucent the LED light can shine through making the balls flash and glow in the dark. They can be easily seen in the dark from more than 100ft away. Simply press the recessed button to turn the light on/off to activate in flash mode or press again for non flash. We designed these balls to be as close to a solid sphere as possible. There is a small air pocket/s left inside after molding. A threaded a hole is molded in the side for the LED plug. Being as close to solid as possible, these balls are almost unbreakable.!!! You can crash the balls together without fear of damaging the balls or the LED components.Battery life is 10 -15 hours with name brand, fresh batteries. Free included starter set of batteries will have a shorter life.