With a 3-angle adjustable height adjustment included that grows as they do, the Franklin Sports baseball pitching machine is great for the backyard. Easy to set up and including six white Aero-Strike balls for practice, kids are ready to play in minutes. Wait for its flashing light indicator, helps kids prepare for a pitch, and swing away.  Help them practice their batting and catching skills with an automatic baseball-pitching machine that pitches every 7 seconds. Weighs only 3 pounds. The 6 balls weigh 3.9oz