It sets up virtually anywhere and stores easily. The cord and tennis balls fit right into the rugged, non-slip base. The durable Kinetic cord stretches up to 30 feet, with dual-swivel connectors that keep the Kinetic cord from tangling as it stretches up to 30 feet and then returns the ball to you.
Just fill the base with water and it automatically will become heavy enough to hold itself in its place. There are "Non-skid pads" under it which keep it in one place. It simulates a real experience so all you do is unwrap the cord and hit the ball as hard as you want and the and the ball will bounce back to you.
This is one of the best devices to get help sharpen you tennis skills at any time of the day. You can warm up with it, practice your strokes, and work on your swing speed.
