This is the ProTech Godfather 921-DF1 Del Fuego Custom Anodize Handle Satin Blade and has a Mother of Pearl Button, is an automatic side opening knife that is Overall Length: 9.3", Blade Length: 4", Blade Thickness: .125", Blade Steel: 154-CM, 59RC, Closed Length: 5.3", Handle Thickness: .485", Weight: 4 oz.