* Use it in your GARAGE or BASEMENT YEAR ROUND * Uses HOLLOW golf practice baseballs * Adjustable speed allows children as young as four to pro skill levels safe, fun and challenging practice * Used by Professional Baseball Players and Teams Bobby Bonilla - Luis Gonzalez - Todd Hundley NY Mets, Houston Astros, Colorado Rockies * See batting improve as a result of hitting RANDOMLY delivered pitches * Improves hand-eye coordination by reducing a batter's hit zone and automatically forcing the batter to keep his/her eye on the ball until impact * Requires a space 16'-20' long by 10' wide * Sets up in 5 minutes The reservoir - rotates while holding up to 100 balls. Delivers a pitch every 6 seconds automatically. The stand - made out of PVC piping to create a durable, yet flexible base. The design is flexible so pitches can be delivered randomly. Between the flexibility of the design and the slightly irregular nature of the practice balls, pitches delivered at high speeds are random-inside/outside curves, sinkers and risers-all with no operator adjustment. Shop vac blower - to propel the ball - 115vac 60 hz --- Air delivery system with no moving wheels. Power source is a durable shop vacuum-derived blower fitted to a tubular structure. Motor-driven hopper on top rotates to drop ball in clear tube every 6 seconds. Each pitch will hit the strike zone in varying location. Sliding air gate adjusts speed of pitch. Pitches over 90 mph at 16-20 feet. Hopper holds up to 100 golf-ball sized plastic balls. Adjustable height via a multi-position "elevator plate" on front leg. No operator required to feed balls. Wiffle balls with holes move more and solid balls shoot faster. Indoor/outdoor use. You can also use with Swift Stik Training Bat to practice hand-eye coordination. Four dozen golf ball size perforated Wiffle balls included.