What is the number of the ball used in the college basketball game?

The seventh.

Basketball No.7 is the standard ball for adult men's competitions. No.7 standard basketball weighs about 600-650g, with a circumference of 75-78cm and a diameter of 24.6cm. No.7 basketball is generally the No.7 ball used in basketball standard men's basketball games, with a circumference of 0.749-0.780m and a weight of 567-650g. Basketball used in FIBA matches should be leather.

According to the FIBA rules, the circumference of the ball should not be less than 74.9 cm and not more than 78 cm (that is, the No.7 ball). The weight must not be less than 567 grams and not more than 650 grams! The standard basketball diameter (dB) is 24.6 cm, while the rim diameter (dR) is 45 cm. It is divided into #7, #6, #5 and #3 1 by model. The standard ball for men's competition is:

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