Kids will have a blast playing catch or working on their pitching with the versatile Champion Sports Plastic Baseball Set. Great for everything from gym class to recreational activities, these hollow plastic baseballs are a safe option for young children to play with, economical, and light enough for a student to carry the whole bag out from storage with ease. This convenient plastic baseball set features six vibrant colors that are easy to spot against the grass, ground and pavement when it's time to clean up. Each set includes 6 balls. Sold as 3 sets for a total of 18 balls.. Versatile plastic baseballs are great for a wide range of drills and recreational activities. Hollow design is lightweight and safe for children to play with. Durable plastic construction stands up to even the hardest hits from bats. 9" Diameter. 6-12 years. Grade 1-6