The 12 count Heater Pitching Machine Baseballs are specially designed to go with Heater Real Baseball Pitching Machines. The dimple design allows these balls to pitch with exact precision, while the optic yellow color offers high visibility. Made from durable polyurethane, they are constructed to last and are the recommended ball for most Heater brand pitching machines. Additional Specifications * Recommended ages 8 years to adult * Comes with a 30-day money back guarantee and 1-year warranty * 12 pitching machine baseballs: Each baseball weighs 0.34375 pounds * Featuring optic yellow dimple design * Includes 1-year warranty * Ideal for developing hand/eye coordination * Recommended ball for most Heater brand pitching machines