Features: Made of 18 mm plywood board Size 8 x 12 ft. Countless hours of practice right at home for the price of a few private tennis lessons. Excellent way to practice tennis at home any time of the day. Accelerated learning of the sport. Reduces video game addiction. Promotes physical activity and fights growing trend of childhood obesity. Introduces more individuals, particularly kids, to a healthy, lifetime sport. Provides a playing venue for all ages and skill levels. Supports the growth of tennis and physical activity.