Surprisingly light for its size, the FatCat is also quick and smooth to deploy with either hand using the double thumb studs. The VG-10 blade rotates effortlessly to lock up in SOG’s Arc-Lock. Tested at over 1000 lbs. of force at the lock, the Arc-Lock is SOG’s strongest lock. The handle is made of machined titanium and textured Kraton which make it lightweight and easy to hold.