Simulate real game action with the 12 count Heater Leather Baseballs package. Recommended for use with any Heater Real Baseball Pitching Machines, the ball is pitched to varying areas of the plate to advance your proficiency. Kevlar seams are low-profile for greater pitching machine accuracy, and make these balls guaranteed to last, no matter how hard you hit. Additional Specifications * Recommended ages 8 years to adult * Comes with a 30-day money back guarantee and 1-year warranty * 12 leather baseballs: Each baseball weighs 0.3167 pounds * Featuring synthetic leather regulation baseball design * Includes 1-year warranty * Ideal for developing hand/eye coordination * Recommended for use with any Heater Real Baseball Pitching Machines