This regulation size 3" diameter virtual speed baseball tells you the speed of your throw within 1 mile an hour. Whether it's from Little League or Major League distance, this ball will measure your speed from glove to glove. Made of leather, the ball has the same feel as a regular baseball. The internal battery is good for up to 100,000 throws. Just grip the ball, press the reset button, and fire your best throw to the catcher. It will read accurately up to 120 miles an hour! The ball is BRAND NEW, never used, and comes with instructions and a string marker with markings for both 46 feet and 60 feet, 6 inches. It makes a great gift for the baseball fan in your family. We have a limited supply of these, so get yours now!