How to distinguish the quality of the tennis ball, and whether the quality of the tennis ball is not

Appearance, cashmere skin paste is not fluffy, and the adhesive strip is smooth and no trachoma.

Resilient, free falling from meters (100 inches) and bouncing off on concrete floors to meters (53-58 inches).

Decompression, no air leakage, maintain a certain pressure.

The amount of reformation is fast to recover the shape after hitting.

Hit resistance, not easy to deform after hitting.

It hurts.

Tennis is a very important element, if the quality of tennis is not good, it will directly affect the player's skills.

Tennis Shopping Guide.

1. Identify the advantages and disadvantages of tennis

First of all, if we get a canned tennis ball, we must see whether the air pressure of the can is sufficient, because if the air pressure of the can is insufficient, it will affect the preservation of the memory tennis ball. If we get the bagged ball, you can use your hands to squeeze the tennis ball to see if it will pop up immediately, if it will not be concave, it must be a defective ball, and at the same time pay attention to the current market (especially in the supermarket) There are some tennis balls called "iron eggs" that feel very hard when squeezed, although these balls are very low, but in fact it is not a tennis ball in the real sense.

In addition, we can visually inspect the spherical surface of the tennis ball to see whether the wool is stained, whether it is symmetrical, whether the color is consistent, whether there is a clumping phenomenon, whether the embedded line is uniform, and whether the wool is wool or chemical fiber (the wool ball is thicker). In the elasticity test, the ball can be free-falling from a height of meters to see how high it rebounds on a concrete plane. Of course, the outer packaging of the product is intact and the printing pattern is clear, which is the most basic requirement of a product.

Tennis Shopping Guide.

2. Choose the tennis ball that suits you.

Each tennis enthusiast has different technical levels, different purchasing power, and different tennis courts, which determines that each fan needs to choose tennis products with different performance and different grades. Tennis players' requirements for tennis mainly include "elasticity, durability, hardness, and landing point", and players of different levels will have different requirements. For example, professional players have high technical level, fast hitting speed and high strength, and have relatively high requirements for the quality of tennis, and the required tennis balls must have good elasticity, strong wear resistance, stable landing point, and good hardness.

Although some quasi-professional players and amateur players and leisure people with high water levels are not as high as professional players, they also have higher requirements for tennis, so they can choose some high-quality and moderately marketed balls. For some enthusiasts who have just stepped into the threshold of the tennis palace, especially young friends, what is needed is a tennis product that is suitable for their own technical characteristics and their economic income level.

The quality of the racket is not based on watching, but on playing. If you're just learning to play tennis, you're going to pay attention to the following:

1. The material of the beat. The main requirements are strong and resilient. The size of the elasticity comes according to one's preference. Less powerful can choose more elastic, and vice versa.

2. The weight of the racket. It is usually about 240 grams (beginners, later depending on your strength).

3. The size of the head. Beginners generally use more than 100+ pats. (In the future, you can choose a small paddle surface, provided that you can click the ball in sweetness).

4. The thickness of the handle. Wrap 1-2 layers around the original wrap handle for the most comfortable grip in your hand. (It is best to wrap only one layer on top of the original wrap).

5. The balance of the beat. Beginners decide according to their strength and preference. The head is heavy, it is easy to serve and hit the ball, and the force is more comfortable; The head is light, and the ball is easy to control. Balanced beat, two balanced books.

6. The width and thickness of the side of the head. The width and thickness of the racket affect the feeling of hitting the ball after stringing. It is generally recommended that beginners choose to buy a racket with strings.

7. The style of the beat. It's better to choose some classic styles. The classic style is arguably the easiest to use.

8. The price of the auction. Beginners generally choose a racket with an original price of about 900-1600 yuan. After the discount, it is generally between 400-900, depending on the brand.

Wilson can be as low as 4 off, Prince is generally 6 off, Pabel is generally about 5 off, Dunlop is generally 5 off, and Hyde is generally 5 off. (Mainly talking about these kinds).

9. Additional items for the racket. Mainly refers to: balls, racket strings, wraps, shock absorbers.

Balls can be bought for 3 STAR balls for 10 yuan. You can buy 17 lines for the shooting line, which is thicker and durable, and choose the size of elasticity according to your strength, and choose the size of the friction of the string (spinning ball) according to your preference. There are three kinds of wraps: ultra-thin, ordinary and thickened, depending on your own situation.

The installation of shock absorbers is to see if the vibration of your racket is too large when you hit the ball, which affects your own hitting the ball.

You can distinguish by looking at your appearance.

1. The color is different.

Basketball is generally black, gray, dark red; And the color of the ball is bright, white, orange-red.

Yellow; Soccer orange bumps are generally black and white.

2. Different shapes.

The ball is smaller, about the same as a football, while basketball is smaller than a volleyball.

The diameter is about 8cm, and the basketball is basically wrapped by a six-petal arc leather, with obvious black seam grooves and raised vesicles; The soccer ball has no seam grooves, no bulges, and is basically wrapped in multiple pieces of skin; The ball is formed by a number of colored strips, rectangular strips that are crossed vertically and parallel to each other.

3. The materials are different.

Basketball skins are generally made of leather, rubber shirts, rubber or synthetic substances. The soccer ball is inflated with pressure at sea level.

between 600-1,100g cm2 and covered with leather or "other suitable material"; The ball is a ball made of material, which is suitable for playing on wooden floors and has the characteristics of good elasticity.