They are sold in the supermarket. And supermarkets are cheaper than specialty stores. ..
100-200 are all very good.
Of course, there are some below 100 yuan, which feels good. Brands such as locomotives,
It is strongly recommended to go to the supermarket, which is cheap. There may be a special price.
The cheapest special PU basketball in the supermarket is 20 yuan, but it's a bit hard. Hehe, but much better than rubber.
Basketball purchase [2] and maintenance;
There are more than 100 basketball manufacturers, especially in Sanying, Spalding and CBA brand basketball markets. There are many kinds of basketball in the market, so it is very important to choose a basketball with good quality, because the basketball with good quality feels comfortable to use, and the basketball with stable bouncing and rotating performance will cultivate good dribbling habits and help to make standard and in-place technical movements. Good quality brand basketball can also enhance your self-confidence. Improve training quality and sports fun. Of course, high-quality basketball has a longer service life. For example, the impact times of Sanying brand and CBA brand basketball reach 35,000 times without deformation, and good basketball quality and service are more guaranteed.
Balls are divided into sewing balls and gluing balls. Commonly used are hand-sewn football, rubber basketball and rubber volleyball, which are made of inner container, outer skin and ball mouth. The inner container is the bladder, the heart of the ball. It is made of black rubber on the innermost layer of the ball. The epidermis is divided into synthetic leather (superfine strong fiber, PU, PVC, etc.). ) and dermis; The ball mouth is used to inflate the ball. There are balls of all sizes. Basketball is divided into three sizes: No.7, No.6 and No.5. Football is divided into No.5, No.4 and No.3. Volleyball is divided into No.5, No.4 and No.3. Commonly used are No.5 football, No.7 basketball and No.5 volleyball.
Second, how to buy good quality balls
A ball with good quality is comfortable to use, stable in bouncing performance, easy to cultivate good dribbling habits, and helpful to make standard and in-place technical movements. Brand balls with excellent quality can also enhance self-confidence, improve training quality and sports fun. They can be used many times at a time and have a longer service life. Want to buy a good quality ball, you need to consider the following aspects:
1. Buy balls produced by regular enterprises. For well-known brands, these enterprises have standardized production and strict management, pay attention to technology and product quality, and their products are relatively stable and reliable.
2. Fill the ball with proper air pressure, find a flat hard ground such as cement, and then lift the ball so that the bottom of the ball is at the height of 1.8m, let it land freely, and observe the elasticity of the ball. The good elasticity of the ball is between 1.2m and1.4m. The bad ball bounces high or low.
3. Check the leather visually for turtle marks, cracked surfaces, knife wounds, etc. Visually check whether the dermatoglyphics are fine and smooth, whether the seams of the football ball shell are neat and uniform, the exposed lines shall not exceed 1.5mm, and the shaft of the glued basketball shall be straight without glue opening.
4, air tightness inspection, all kinds of balls should focus on air tightness inspection, ball requirements without air leakage, slow exhaust and other phenomena. The common inspection method is to fill the ball to a certain pressure, and then drop it on the air nozzle with clear water. If there are small bubbles, the ball is leaking.
Third, the use of the ball
1. It is best to use a special air needle as an inflation tool. Lubricate the air needle before use. Do not use deformed air needles or other substitutes to prevent damage to the air nozzle.
2. Each ball should be inflated to the specified air pressure. The standard air pressure of 7 # basketball is 0.06MPa, that of 5 # football is 0.07MPa, and that of volleyball is 0.0425MPa. Under the standard air pressure, the ball has the best performance, otherwise it is easy to deform.
3. Pay attention to the selection of balls with different material series according to different venues, which can prolong the service life.
4. After use, clean the surface of the ball. Don't wipe the real ball with a wet cloth to prevent mildew. Store in a cool and dry place.
5, don't sit on the ball, lest the ball deformation.
6. The sphere should not touch sharp objects to avoid being punctured and leaking.
First, the structure of basketball:
To buy high-quality basketball, we must understand the structure of basketball.
1, liner: that is, the bladder, that is, the heart of basketball, is made of black rubber at the innermost layer of basketball;
2. Wire winding: The middle and high-grade basketball must be evenly wound on the surface of the ball liner with nylon wire special for basketball, so that the ball liner forms a cocoon-like protective layer, but not every kind of basketball adopts this process, and many low-grade basketball does not wrap the wire, but uses gauze instead;
3. Intermediate bladder: the supporting structure between the inner bladder and the epidermis is made of rubber;
4. Skin: divided into three categories: rubber, synthetic leather (superfine strong fiber, PU, PVC, etc. ) and dermis;
5, the ball mouth: the "throat" of basketball inflation is very important for air tightness.
Second, where is the good quality basketball?
1, lining: brands like Sanying and CBA all use imported rubber, which is the same as the lining of high-end automobile tires. After strict patented technology processing, the bounce is soft and stable, which is the internal source of the delicate feel of high-quality basketball. A good feel will certainly bring good confidence.
2. Winding: Sanying, CBA brand basketball only uses nylon thread special for basketball with very good flexibility, and it is evenly wound with a precise special winding machine for basketball for 2 kilometers, which makes the basketball bounce more textured, the ball flies more stably and accurately when shooting, and the basketball is more firm and not deformed;
3. Leather: High-quality basketball is made of leather specially made by professional manufacturers, which can meet the requirements of different venues and the feel habits of customers. Sanying Basketball and CBA brand basketball provide a variety of basketball series with different materials for basketball lovers to choose from.
Third, how to distinguish all kinds of basketball
1, look for the trademark of brand basketball;
2, check the overall production process;
3, check the bounce, perimeter, center of rotation, ball technology and comprehensive feel, etc.
4. Check whether the free pin and bag are complete;
5. Check whether the printing and number of the certificate are consistent with the bar code on the sphere;
6. Check whether the retailer has the designated dealer certificate issued by the brand basketball manufacturer, and both Sanying Basketball and CBA brand basketball have specially made designated dealer certificates;
7. If you are not sure of the authenticity, you can call the manufacturer directly.
Buy a good quality basketball, but also pay attention to the use of:
1, the basketball pressure should be 7-9 kg, otherwise it is easy to deform. Test method: on the flat and hard ground, let the basketball fall freely from the height of 180CM, and the rebound height is 125- 145 cm, which is normal;
2. Pay attention to choose indoor/outdoor basketball with different material series according to different venues;
3. After use, clean the surface of the ball (leather basketball should not be wiped with wet cloth to prevent mildew) and store it in a cool and dry place.
References:
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