It is pretty hard to bend the part by hand. It won't break from normal use, but don't be dropping tanks on them.
In fact, don't be dropping tanks on any measuring instruments.
Actually: I'll do you one better. Members get 6 months comparable replacement guarantee. If you break it, and don't feel bad about asking for a new one, I'll send you the latest version on my dime.
(Do let me know how you broke it, though; I don't mind feedback on durability!)
Last edited by alpha434; 12-13-2011 at 12:11 AM.