The Walther Micro PPQ knife weighs about as much as a standard letter, only 110mm long when open and 63mm long when closed.
This tiny knife lives up to its name in another way too. Like the famous Walther PPQ pistol it has a miniaturized Hi-Grip surface finish. The 48mm black coated spear point blade is made of 440C high-performance steel and features a liner lock mechanism.
48mm blade length, 110mm overall length, 27g