This is the Protech TR-4.3 with a 154-CM DLC Black drop point blade with a unique Sterile Black handle with a constant glowing tritium button. 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 Protech 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: 9.25", Blade Length: 5.25", Blade Thickness: .125", Closed Length: 5.25", Weight: 5.5 oz. Tip down carry.