Gamma First Set Tennis Net $139.99 Gamma First Set Tennis Net: The Gamma First Set Tennis Net is portable, lightweight (19 pounds), and quick and easy to set up. The net comes with a zippered nylon carrying case and can be used indoors or out, on a tennis court or across a driveway. At 15 feet long by 33 inches high, it is the perfect size for teaching children. Need help? Find answers in the Tennis Buyers Guide