The Louisville Slugger UPM75 Black Smoke Ultimate Pitching Machine is power at its finest. This completely mechanical pitching machine requires no power or electricity and can throw accurate pitches at speeds from 55-75 mph. This machine is ideal for players ages 12 and up and is completely portable weighing only 40lbs. The UPM75 allows you to save your pitchers arms without giving up the ability to throw baseballs at high speeds accurately. You can use this amazing pitching machine anywhere without the need for power. We recommend dimpled baseballs for this machine; it will throw normal balls but the dimpled balls will usually see more accuracy.This is the top-of-the line Louisville Slugger manual pitching machine. This machine has been completely redesigned, trading the old wheeled design for a much more sturdy tripod. A double-spring mechanism increases tension for superior power, and with the construction you have come to expect from Louisville Slugger, the UPM 75 Black Smoke will last many, many years.