to make a 2 cm square mesh along its length and is edged with red tape at the top. The entire net is red, white and blue, 100 cm wide and 13.5 metres in length. It is tied to a centre pole of 183 cm and two poles of 185 cm at the sides of the court to maintain the 183 cm height of the net at the centre. Two posts, each 180 cm high, are fixed one metre outside the court on either side at the end of the line to which the net is tied, strong enough to keep the net well stretched. A hook is fixed at 1.5 metres height to each pole to easily tighten the net whenever necessary. The size of the court for "fives" teams is 12 metres wide and 24 metres long. It is divided across the middle by a net line over which the net is hung, the ends of which are attached to the tops of the two posts. The serving crease lines are drawn one metre away from each side of the net line and parallel to it. The centre line is drawn halfway between the serving crease lines and parallel to the sidelines; this divides the space on each side of the crease line into two-halves, known as the right and left courts. The boundary lines are marked with white tape, 10 mm thick. The centre and crease lines are to be marked so as to be visible, about 10 mm wide Rules Ball badminton is a team sport. The ball is served (hit from the right or left court of one side to the diagonally opposite court of the other side). The server begins on the right court and moves to the left court each time a point is scored. The ball may be returned by any opposing player. After the first 9th, 18th, and 27th point the teams change positions, with the server continuing to alternate between the right and left courts. The ball is served underhand below the waist, then it must go over the net and beyond the serving crease line on the other side. An overhand service—if the ball is above the server's waist when it is struck—is a fault. The ball must be returned before it touches the ground, and no player may strike the ball twice in succession. The server must not