WEKNIFE Nitro OG Flipper & Thumb Stud Knife Titanium & Carbon Fiber Handle 3.75″ Posted on July 14, 2026 Handle Material: 6AL4V Titanium With Aluminum Foil Carbon Fiber Inlay. Thumb Stud Material: 6AL4V Titanium. Thumb Stud Color/Finish: Blue. Knife Weight: 4.9oz / 139g. Blade Finish: Hand Rubbed Satin. Back Spacer Material: 6AL4V Titanium.