Pro-techs TR (tactical response) knives are all business. This is the ProTech Automatic Knife TR-3 J1 that has has a rare original Blue Jazz Grooved handle and a Stonewash plain blade. The ProTech TR series of knives are all made of the highest quality materials available, manufactured and assembled painstakingly to produce a factory production knife with the tolerances of a custom made knife costing hundreds more. Rest assured that your ProTech Tr knife will rise to any challenge put before it. As with all Pro-tech Knives, the TR series carries a limited lifetime warranty and Dave, the founder and owner of ProTech Knives, personally stands behind every ProTech knife made.Specs: Overall Length: 8", Blade Length: 3.5", Blade Thickness: .125", Closed Length: 4.5", Weight: 3.6 oz. Tip down carry. One of her favorite handle materials. She carries the Godfather of the same Blue Jazz color as her every day carry knife. Only one available so get it now!