Spalding 74-604Y basketball is used in the competition, with the specification of standard No.7 ball and the weight of 600-650g. The material is made of PU leather, and the interior is made of rubber tires and nylon wrapped yarn, which ensures the good feel of basketball and can be used indoors and outdoors. In addition, as the signature of the president of NBA, 74-604Y has the signature of Adam Xiao Hua, which is worth buying.