After about 8 months of the cover is torn or cracked during the transition between the side wall and top. This is a weak point, since the plan runs exactly along the top edge where the thread ends. Every time the lid is screwed tight, probably there is a tension, which later became the interface brings sooner or burst. For a Shaker in this price range is not so. Otherwise, I was very pleased with the shaker, since it (until recently) was robust and leak-proof. Only the Geklacker the metal ball I found annoying when I ran with my gym bag into the studio.