VALUE PACKAGE You'll get 12-PACK baseball training balls for endless fun. Each hollow baseball ball has a 9-inch circumference, classic ball design will help you develop strength. Perfect for beginners or any baseball fanatics who want to improve their overall game.POP-BACK TECHNOLOGY Practice baseballs made with proprietary pop back material which allow them to pop right back into their original shape after they're hit These are made to withstand thousands of hits, lasting season after season, NO crack or shatter SAFEandHOLLOW DESIGN Thanks to 26 holes (not 16 holes) provide low flight resistance, true spin and accurate distance. The hollow design is lightweight and safe to make it less intimidating for beginners but strong enough to handle repeat practices.FUN FOR ALL AGES The plastic baseballs are safe for all ages to play with, and the lightweight design will not damage walls or floors, makes that allow nonstop fun whether outdoor and indoor practice, neighborhood games or fetch with a pet. SCOPE OF APPLICATION Use them to play softball, baseball, paddle games, catch, street hockey or other ball games. Perfect for physical education classes, playgrounds and recreational clubs. Designed for safety and all-around fun.