The original lockback now is automatic. Well known for its durability, High quality and all out toughness. This knife has been converted to a dual action automatic knife by a retired German knife maker of 50 years. Push the hidden button for automatic open or open like a regular pocket knife. Ony you know the secret power built into this had crafted auto blade converted knife.The craftsmanship of these knives are simply the best. Mechanisms work flawlessly. Ours are unlike most being sold online that are produced in a factory somewhere. Ours are hand crafted conversions. These are rare and we got only a few. Lifetime guarantee. Blength: 3-3/4". Closed length: 4-7/8". Overall length: 8-5/8". Weight: 7.2 oz.