This is a device to take the weight off your bottom when sitting. You keep it strapped on, and when you sit, the base hits the chair first and takes the weight. Thanks to Sally for letting me know about it.
It is made in Australia, and details are given on The Back Liberator website
It looks as if it could be helpful for people with coccydynia, but I have not heard from anyone who has tried it. If you try it, please let me know how you get on. You can contact me here.
Updated 2010-06-13