The idea, design and the radiators themselves are great. I can not say about the duration, however. With regard to the fixing, so it may be that the clamp for round stroller linkage bi 22mm good services but leistet- the Velcro strip for attachment to other sizes is rather an impertinence. As I would have expected more at this price. For almost 30 I would have expected that a second bracket enclosed for other linkage.
Ultimately, I had to make something myself - at the price but not acceptable. If the linkage is larger in diameter 22mm and / or has not round shape, I would look for alternatives.