FB-YY01 general Yoyo ball FB-YY02 transparent Yoyo ball FB-YY03 flashing Yoyo ball and FB-YY04 fl FB-YY01 general Yoyo ballFB-YY02 transparent Yoyo ballFB-YY03 flashing Yoyo ball andFB-YY04 flashing music Yoyo ballFeatures: 1) When playing, it can return automatically 2) Several designs available 3) Different light flashing 4) Assorted music 5) Many colors available 6) Various sizes available: 45mm, 55mm, 60mm 7) Many logos available, or according to customers' requirements