Perfetta is the preferred choice of champions, pro players and has been the official ball of the World Bocce Championship for more than 15 years. They are the most popular choice for clubs and the growing number of dedicated Bocce facilities around the US (e.g. Campo di Bocce-CA, Palazzo di Bocce-MI). If you have a home court or regularly play at a bocce venue, or if you want to give a set to a player who wants the the best, then these are perfect. Special blend solid composition balls. Warranted for 10 YEARS!! They will not split, or crack. This has never happened in all the years we have sold these balls. If somehow you manage to break a ball we will replace the damaged ball for just the cost of shipping.