– 1 about one foot from the singles side line and half way between net and service line;
– 1 in the corner formed by singles side line and service line;
– 1 about a foot inside the service line and half way between singles side line and center line;
– 1 at the corner of service line and center line.
Position yourself behind the opposite baseline and start serving and aiming for the cones starting with the wide one.
Keep serving until you knock it down. Only then will you proceed to aim for the next cone.
Note: Excellent drill for developing accuracy on serves.