PowerAlley Pro Real Ball Machine & 22' Batting Cage Fastballs, Grounders, & Pop-Flys Pitches Lite Baseballs Up To 60 MPH Fully Enclosed Wheel Adjustable Pitch Height Tripod with Rubber Tips Uses Standard A/C Power Solid Fiberglass Frame 1? Polyethylene Netting Steel Ground Stakes and Nylon Support Ropes Built-in Pitching Machine Harness Works Perfectly with Heater Sports Pitching Machines Heater Sports PowerAlley Designed by World Sports Products, the Heater Sports PowerAlley Pro Real Ball Machine & 22' Batting Cage is built for lasting quality and everyday use. Shop at OJCommerce and explore our collection with free shipping on every order.