HEATER SPORTS Slider Lite Curveball Baseball Pitching Machine for Kids, Teens, and Adults, Uses Pitching Lite Machine Baseballs & Plastic Baseballs, Includes Automatic Ballfeeder FASTBALL & CURVEBALL LITE-BASEBALL PITCHING MACHINE - With a Simple Twist of a Knob, the Slider Can Pitch Fastballs and Left & Right Handed Curveballs. Not Only That, Adjust the Tripod Legs to Throw Grounders & Pop-Flies! PITCHES SLIDER & POWERALLEY LITE BASEBALLS (NOT INCLUDED) - The Slider Features a 0-10 Speed Knob To Adjust Pitches From 10-60 MPH Depending on Which Slider/PowerAlley Lite Ball Is Used. DURABLE & SAFE HOUSING - The Slider Encompasses a Durable Plastic Housing Covering Its Rotating Wheel So It's Safe For Any Age. AUTOMATIC 12 BALL FEEDER INCLUDED - The Slider Includes an A/C Powered Spiral Ball Feeder Which Drops a Ball into the Machine Every 8 Seconds So You Don't Have To Manually Feed Each Ball. CONNECTS TO HEATER SPORTS BATTING CAGES - If You Want a Home Hitting System In Your Yard, Look for any Heater Sports Batting Cage for Easy Connection to the Slider's Easy Connect Housing.