Assembled tennis ball pitching machine and net, featuring a durable steel frame and nylon net. The machine already has 4 batteries installed. Includes one tennis ball as a bonus. An instruction manual is also included. Assembly is easy. Simply hook the net onto the steel frame. Then, following the photos in the instruction manual, adjust the net so that tennis balls hitting it will fall into the machine. I bought this for my son, but he has now joined a table tennis club, so I'm selling it. The machine has been tested and is in working order. The first photo shows the ball in action. - Type: Tennis ball pitching machine, can also be used for baseball - Net Material: Nylon - Frame Material: Steel - Installation: Assembly required - Size: Approximately 2m x 2m Thank you for looking.