How to judge the quality of football?

Mainly look at the following aspects:

1, look at the seam, sew from the inside to the outside, and the kind that can't see the line outside is better;

2, look at the weight, No.5 bouncy ball is a standard game ball. It will be lighter when fully inflated. Too light and too heavy is not a good football. The elasticity will be good, and the sound of hitting the ground will be thick, not as heavy as basketball and not as fragile as volleyball;

3, look at the appearance, the appearance is too smooth is not a good football, there must be a slight sense of friction, it is the friction texture of the skin, not the appearance of particles and floating points. The appearance of the skin will fall off, but try not to play football in the water, it will fall off quickly after soaking.

Football, with the reputation of "the first sport in the world", is the most influential single sport in the world. In a standard football match, the two teams each send 10 players and 1 goalkeeper, * * *1/people to fight and attack on a rectangular grass court. The purpose of the game is to shoot the football into the opponent's goal as much as possible, and you can get one point for each goal. When the game is over, the team with the most points wins. If the score is the same within the specified time, it depends on the rules of the game. You can draw lots, play overtime or shoot each other (12 step) and so on. In the football match, except the goalkeeper can touch the ball with his hand in his own restricted area, each player can only control the football with other parts of his body except his hand (except the foul ball).