Received these today and immediately 'installed' various keys. For the money they're decent enough, but what bothers me is the disproportion of the grooves, meaning I could, for example, force the wrench to go into the penultimate groove (second smallest) that wouldn't fit the groove above ( third largest and where the key is supposed to be), which is a bit frustrating. It may be a while before I see if I can flex the grooves a bit to get over it, but regardless of the cost I shouldn't worry about it as it doesn't make sense.