2.The long sides are known as the side lines, and the short sides as the base lines. The 'forbidden' zone is semi-circular in shape, with a three meters radius measured from the center of each base line. The front base of the rebound net is positioned in the middle of the diameter of this zone.
All lines form part of the line they delineate.
They should be clearly visible and measure five cm in width. It is recommended that there will be a 2 meters clear area around the playing area. Frames must conform to F. I. T. B. standards. The ball must be round, with a leather covering and a rubber bladder. In men's matches the ball must have a circumference of 58 to 60 cm and weigh 425 to 475 grams.