12-Count Slider Lite Synthetic Leather Baseballs by Heater 

These lite pitching machine balls by Heater Sports are made to look exactly like regulation baseballs, but they're actually lite balls that weight about 1/3 that of real baseballs.  Bottom line: you get real-game hitting conditions in your back yard.  While these balls are optimized for use with the Heater Slider Lite Baseball Pitching Machine, they can also be used with real baseball pitching machines that throw lite balls.  The balls' covers are composed of synthetic leather (just like real baseballs), and they are built with low-profile seams to ensure greater accuracy and longer life.

Specifications:

• Type: lite baseballs designed to look like regulation baseballs
• Count: 12 balls
• Color: regulation white baseball with red stitching
• Optimized for: Heater Slider Lite Baseball Pitching Machine, real baseball pitching machines that throw lite balls