The basic height of water injection flagpole is divided into 3 meters, 5 meters and 7 meters (the highest height is retractable);

3m picture: 0.5 * 2m, 0.6 * 1.6m, 0.8 * 1.8m, with a width limit of 0-80cm and a height limit of 0-300cm;

5m screen: 1 * 3m, 1 * 4m, 1.2 * 3.5m, 1.2 * 4m, with a width limit of 0- 120cm and a height limit of 0-400cm;

7 m diagram: 1.2*4 m, 1.2*5 m, with a width limit of 0- 120cm and a height limit of 0-550 cm;