The Partially SERRATED "TIGER" Spring assist. OR Flck Knife. This can easily replace an automatic knife. No buttons. No safeties to fumble with. Opens two ways - one is with the double sided thumb stud. Or with the blade tab on the spine side. This bad boy opens faster then most automatics. Excellent quality. Zero blade play. The all black blade closes with a user friendly liner lock. It measures 3-1/2". Partially Serrated. Open length = 8". Well secured pocket clip. Real wood scales. I really cant say enough about this item. I think you'll be impressed.