Everything is great here! The rubber is not too soft, but not hard and can be easily attached thanks to two different levels of corrugations, that is, he "attacks" really. For this he is with the really long lever (as a whole is almost 8 cm from the lens from) determined at any time be re-dissolved and re-attached.
For me the best solution. He fits well for very large lenses of course depends on the "excess" elastic at ordinary lenses useless down, works by perhaps a little clunky, but bothers me not - and who it bothers, the kanns cut.