Whether you're holding an official tournament or enjoying playground fun, the Champion Sports Deluxe Bocce Tournament Set is sure to impress. It features a complete set of rules to help new players pick up the game, and nine balls that are made from a durable and lustrous phenolic resin that will roll smoothly across any surface. Once the scores are tallied, the bocce ball set packs away neatly into a durable and weather-resistant 1,680 denier nylon bag, which is strong enough to tow the pieces around, game after game. Diameter: 4.25"; Material(s): Phenolic Resin; Playground/Gymnasium Sets Type: Bocce Set.