First of all, in terms of size, the diameter of No.7 basketball is 23-24 cm, while the diameter of No.5 basketball is 18-20 cm. This means that the No.7 basketball is bigger than the No.5 basketball and more suitable for adult competitions and professional training. In contrast, No.5 basketball is more suitable for children and teenagers, as well as amateur competitions and daily fitness.
Secondly, in terms of weight, the No.7 basketball usually weighs 600-650g, while the No.5 basketball weighs 450-480g. This difference makes No.7 basketball more suitable for indoor and outdoor hard courts, because it is heavier and easier to control and shoot. Basketball No.5 is more suitable for soft ground, such as beach or grass.
Finally, in terms of use, No.7 basketball is mainly used for adult competitions and professional training, and No.5 basketball is mainly used for children, teenagers and amateur competitions. In addition, because the size and weight of No.5 basketball are more suitable for children and teenagers, it is also an ideal choice for them to learn basketball.
To sum up, the difference between No.7 basketball and No.5 basketball mainly lies in size, weight and use. When choosing basketball, you should choose the right size according to your own needs and physical conditions. Whether it is No.7 basketball or No.5 basketball, the correct choice will help improve our basketball skills and enjoy the fun brought by this sport.