I can not recommend the Castle - for the 2nd time me is a key canceled - even when unlocking and now when completing. That although still a 3rd spare key - but I get I prefer a new lock - the key is also to soft material made - after a certain number of closing processes is final. And I oiled now and then the locking mechanism - he was not stiff. ABUS I received on this subject, incidentally, no answer, which already everything says ;-)