Save 20% by joining Kilroy's Club! Visit https://www.kilroysworkshop.com/kilroy-s-club. Youth must be Apprentice I or higher. Adults - no prereq. Introducing the AMAZON knife. While this knife is small (5" overall with 2" blade), it is perfect for ------ opening Amazon packages, of course! We forge a rectangle of mild steel into the knife shown below. And before you think "this is easy because it's small," realize that sometimes small things can present the biggest challenges! If you don't believe me, work with preschoolers for a day... :) You'll love the Amazon knife, and it will become one of the most used knives in your home (if you're an online shopper).