It took several months, but we finally received our replacement Kryptonite U-locks. As some of you may know, it was discovered that the older locks with round keys could be easily picked using the end of a Bic pen. Kryptonite did the right thing and offered to replace any lock with a round key. The new keys are flat and easier to use than the old round keys. If you have a round key Kryptonite lock, go to the Kryptonite Web site for information about the recall and an online registration form.