I have used some basketballs, and the ones from Skadden and Spalding have been used for a long time. I feel that the Skadden ones are too hard, but the Spalding ones feel good and are not expensive, about 100 to 200 yuan. Spalding's basketball also has the following characteristics:

1. It is not easy to leak and deform, not easy to open and peel. The basketball production process is complex and strict, and the ball is strong and durable. (Before leaving the factory, samples have passed 20,000 impact tests);? 2. The circumference is consistent, and the overall consistency of the basketball is better than the international special inspection standard (the difference in circumference is less than ±2mm);? 3. Excellent dribbling feel and moderate bounce; SPALDING basketball has excellent overall feel. It has been 130 years since its founding and contains many legends. NBA superstars are very particular about the direction and position of the basketball LOGO when serving in games, and they must not be changed;? 4. ?Credit guarantee and after-sales service, normal use, within the warranty period, if there are quality problems, unconditional return or exchange.

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Basketball purchase and maintenance?: There are no less than a hundred basketball manufacturers, and Sanying, Spalding and CBA brand basketballs in particular occupy a large share of the market. There are many types of basketballs on the market. Therefore, it is very important to choose a good-quality basketball, because a good-quality basketball feels comfortable when used, and a basketball with stable bounce and rotation performance will cultivate good dribbling habits and help make standard and in place technical movements. High-quality brand basketballs can also enhance your self-confidence, improve training quality and sports fun. Of course, high-quality basketballs have a longer service life. For example, SANYING brand and CBA brand basketballs can be hit 35,000 times without deformation. Moreover, the quality and service of Good Basketball are even more guaranteed. ? Balls are divided into stitched balls and adhesive balls. The most commonly used ones are adhesive basketballs and adhesive volleyballs, which are made of inner bladder, skin, and ball mouth. The liner is the bladder, which is the heart of the ball. It is the innermost layer of the ball and is made of black rubber. The skin is divided into synthetic leather (superfine strong fiber, PU, ??PVC, etc.) and genuine leather. The ball mouth is used to inflate the ball. . Balls come in different sizes. Basketball is divided into three sizes: 7, 6, and 5. Volleyball is divided into three sizes: 5, 4, and 3. There are No. 7 basketballs and No. 5 volleyballs. 2. How to choose a good-quality ball. A good-quality ball feels very comfortable when used, and has stable bouncing performance. It is easy to develop good dribbling habits and helps to make standard and in place technical movements. A high-quality brand ball It can also enhance self-confidence, improve training quality and exercise fun. It can be used multiple times once inflated and has a longer service life. If you want to buy a good-quality ball, you need to consider the following aspects: 1. Buy balls produced by regular companies. Compared with well-known brands, these companies have standardized production, strict management, focus on technology and product quality, and their products are relatively stable and reliable. 2. First inflate the ball with appropriate air pressure, find a flat hard surface such as cement, and then lift the ball so that the bottom of the ball is at a height of 1.8m. Let it fall to the ground freely and observe the elasticity of the ball. The elasticity of the ball is between 1.2m~1.4m. A ball of poor quality will bounce higher or lower. 3. Appearance inspection: The leather should be free of moire, cracks, cuts, etc. Visually check whether the leather grain is fine, whether the surface is smooth, whether the stitching of the football shell is neat and even, the exposed line should not exceed 1.5mm, and the stem of the glued basketball should be Straight, no glue opening. 4. Air tightness inspection. All kinds of balls should focus on checking the air tightness. The balls are required to have no air leakage, slow air leakage, etc. The commonly used inspection method is to fill the ball to a certain pressure and then drip water on the air nozzle. If there are small bubbles, it means the ball is leaking. 3. How to use the ball 1. It is best to use a special air needle for inflating tools. Lubricate the air needle before use. Do not use deformed air needles or other substitutes to prevent damage to the air nozzle. 2. Each type of ball must be inflated to its specified air pressure. The standard air pressure of 7# basketball is 0.06MPa, the standard air pressure of 5# football is 0.07MPa, and the standard air pressure of volleyball is 0.0425MPa. Under the standard air pressure, the performance of the ball is the best. , otherwise it will be easily deformed.

3. Pay attention to choosing balls of different material series according to different venues to extend the service life. 4. After use, clean the surface of the ball. Do not wipe the real leather ball with a wet cloth to prevent mold. Store it in a cool and dry place. 5. Do not sit on the ball to avoid deformation of the ball. 6. Do not let the ball come into contact with sharp objects to avoid being punctured and leaking. 1. The structure of basketball: To buy a high-quality basketball, it is necessary to understand the structure of basketball. ? 1. Liner: The bladder is the heart of the basketball. It is the innermost layer of the basketball and is made of black rubber; ? 2. Wrapping: Mid- to high-end basketballs must evenly wrap a basketball around the surface of the liner. Special nylon yarn forms a cocoon-like protective layer for the bladder, but not every basketball uses this process. Many low-end basketballs do not wrap the silk around but use gauze instead; 3. Middle bladder: between the inner bladder and the outer skin. The support structure between the two is made of rubber; 4. Skin: divided into three categories: rubber, synthetic leather (ultra-fine strong fiber, PU, ??PVC, etc.) and genuine leather; , very critical to air tightness. ? 2. What are the advantages of high-quality basketball? 1. Inner liner: Brands like Sanying and CBA use imported rubber, which is the same material as the inner liner of high-end car tires. It is processed through strict patented technology and has soft and stable bounce. , is the intrinsic source of the delicate feel of high-quality basketball, and good feel will of course bring good self-confidence;? 2. Silk wrapping: Sanying and CBA brand basketballs only use basketball-specific nylon yarn with very good flexibility, using precise The special basketball yarn wrapping machine evenly wraps the basketball with a length of up to 2 kilometers, which makes the basketball bounce more textured, the ball flight and rotation when shooting are more stable and accurate, and the basketball is stronger and does not deform;? 3. Skin: High-quality basketballs are made of leather materials exclusively supplied by professional manufacturers, which can meet different venue requirements and customers' feel habits. Sanying Basketball and CBA Brand Basketball provide a variety of basketballs in different material series for basketball enthusiasts to choose from. ? 3. How to identify various basketballs? 1. Identify the trademark of the brand basketball; 2. Check the overall production process; 3. Check the bounce, circumference, rotation center, ball mouth technology and comprehensive feel, etc.; 4. Check whether the free needles and bags are complete; 5. Check whether the printing and number of the certificate match the bar code on the ball; 6. Check whether the retailer has a designated distribution certificate issued by the brand basketball manufacturer, Sanying Basketball , CBA brand basketball has a specially produced designated dealer certificate;? 7. If you are still unsure of the authenticity, you can call the manufacturer directly. ? When purchasing a good-quality basketball, you should also pay attention to how to use it: ? 1. The air pressure of the basketball should be 7-9 pounds, otherwise it will be easily deformed. Test method: On a flat hard surface, let the basketball fall freely from a height of 180CM. The rebound height is 125-145CM, which is normal; 2. Pay attention to selecting indoor/outdoor special basketballs of different material series according to different venues; 3. After use, clean the surface of the ball (do not wipe the leather basketball with a wet cloth to prevent mold) and store it in a cool and dry place.