The flag of the junior volleyball team is 7.5 cm. According to relevant data, Volleyball Boys is a juvenile cartoon created by Japanese cartoonist Haruichi Furudate. The traditional Chinese version of this book is published by Dongli Publishing House, Chinese mainland by Flip Animation Society, the simplified Chinese physical version by Zhejiang People's Fine Arts Publishing House, and the electronic version by Tencent Animation, Quick Watch Comics, Bi Li Bi Li Comics and Manfan Comics.