Crafted with the expert in mind, the Franklin Expert Bocce Set sports a professional look and feel. Perfect for any athlete, the classic red and green balls are made of durable resin. Bocce Ball Materials and Sizes Resin is the most popular material for bocce balls and will withstand frequent use better than other materials. Molded plastic is best for children or for beginners and can be somewhat softer although still very durable. A bocce ball that is smaller than 100mm is typically best for children or for beginners. This size is easiest to handle and toss. Tournament balls will range between 107mm and 115mm. The International Standard ball is 107mm (4.2 inches) and weighs 920 grams (2 lbs.). The occasional backyard player will most likely appreciate a size somewhere between 100mm and 110mm. For the experienced bocce player * Eight 115mm red and green bocce balls * 60mm white pallino * Balls etched for easy team designation * Durable resin construction * Case for transport and storage * Set of rules