WristWand
When I got the Wristwand in the post I thought I’d been had. Saw the end off a sweeping brush and you’ve got the Wristwand. But in fairness it does have to be the exact width (ok we’re still in sawn-off sweeping brush territory) – it is wrapped in nice foam on either end.
It does give your wrists a good stretch though. You just hold either end and raise your arms over your head while twisting at the wrists. Exercises can be easy to forget, so at the very least things like this act as a good prop; a reminder. Even if they’re not the miracle cure some of the pr would have you believe. And the WristWand is less than a tenner, so no big deal.