With this Upgrade Set you can update your existing ERGObassoon set to Full Set. It contains the bended support rod (2 x 90 degree) and the new, rotating support head. Also, the support head is re-shaped for more easy attaching to the eye bolt of the ERGObassoon clamp. When playing sitting down, just place the spring from your existing ERGObassoon basic set and play. Watch the video to see the difference:
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