THE WHEEL OF HARMONY and MUSIC THEORY EQUATIONS
| Country | USA |
| Brand | ZHANGSHENG |
| Manufacturer | Ri Kang Jing Ji(Shenzhen)Co., Ltd. |
| Binding | Electronics |
| ItemPartNumber | T710 |
| Model | T710 |
| Color | Transparent |
| UPCs | 823544662820 |
| EANs | 0823544662820 |
| ReleaseDate | 0000-00-00 |