The Microtech OSS Cobra Knife, model 137-2GR, features an auto lever lock style open mechanism and a Green G10 handle. This knife has a two tone black part serrated bowie style blade built from S35-VN stainless steel. The handle is constructed from layered G10 with green and black layers. The OSS Cobra opens with a lever lock mechanism. You open the lever and then push it down and the blade snaps open with the two leaf springs. When closed, the lever functions as the safety. The pocket clip on the back features the serial number, the date, and the Microtech model information. Knife Category: Automatic Knife Blade Style: Bowie Blade Action: Side Open Automatic, Lever Lock Blade Length: 3 3/4" Blade Material: Black Two Tone Part Serrated S35VN Stainless Steel Open Length: 8 7/8" Closed Length: 4 3/4" not including lanyard length Weight: 5.55 Ounces Handle Material: Black and Grey Layered G10 Clip: Stainless steel, removable Sheath Material: Black Nylon Belt Sheath