The Rawlings OLB3 Recreational Use Baseballs are designed for players ages 8 & under, with a solid cork and rubber center, and a synthetic leather cover to create an easy grip in addition to raised seams. These 12 baseballs come in a convenient, reusable mesh bag and are suitable for recreational use of ages 8 and under. They are official size and weight and are the #1 choice of leagues, coaches, parents, and players in North America.