The Cobra Volleyball System is a versatile system that uses no guywires, adjusts to various heights (men, women, junior), and can even be used for badminton and grass/beach tennis. Setup is easy no matter your playing surface. Grass or Sand, it only takes about 5 minutes of hammering ground stakes, setting poles, and tightening the net. The uniquely designed Flex Pole Technology establishes Cobra's net tightening, providing good net play. All Cobra systems are regulation size and can be customized to fit in any backyard size (call 1-800-494-3933 for pricing).