This Heavy Duty Classical Black Swirl Marble Butterfly knife offers a very thick and heavy construction all the way around. It features a satin finish 440 stainless steel drop point blade which is very sharp and sports a short blood groove on one side. The knife has a usual butterfly opening with a stainless steel satin finish handle and black acrylic swirl marble inserts, riveted down to the handle with brass pins. This knife also comes with a safety latch and a black durable nylon sheath with belt loop. It also comes equipped with a silver pocket clip for more accessibility. Anyone holding this knife in their hands will feel the durability of these knives. Specifications: Overall Length: 8.75 inch Blade Length: 4 inch Blade Features: 440 Stainless Steel, Drop Point Blade Blade Thickness: 2.53 mm Handle Length: 4.75 inch Handle Features: Safety Latch, Heavy Duty Stainless Steel Construction, Black Acrylic Swirl Marble Inserts. Handle Thickness: 3.58 mm Includes: Free Black Nylon Sheath with belt loop and Pocket Clip.