This trick padlock is so secure, most people can’t open it, even if you give them the key. A sort of "Dan Lock Jr.,” this particular puzzle lock is made by Dan Feldman's son, Boaz.
B-Lock is only slightly less impervious than the Dan Lock but it still might take you a while to unlock its precision machined secrets. The good news is that B-Lock is a real, functioning padlock, so after you solve it, you can use it to secure your valuables. A confounding yet functional puzzle worthy of the best secret agent.
Made in Israel by Boaz Feldman.