The ball won't stay on the metal arm/rod / spinning awkwardly / there is rattling sound
If you are using a ball with a dowel, then you may be missing either a PVC tube or a black end cap to secure or retain the ball in the metal arm. Please check your TopspinPro box and there should be a small paper envelope of ball retainers and also some spare elastic bungees. Please use a new retainer, preferably the PVC tube rather than the black end cap.
Here is the assembly guide to help you with the installation.
If you are using a ball with a spindle, then it is most likely that there is a fault with the ball you received or it had been damaged. Please contact us and our customer services will be happy to assist you in getting a replacement ball.
Once you receive your new ball, here’s a video on how to install the ball, and here is the assembly guide to help you with the installation.
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