OTF Knife with Dual Rail & Beefier Negative Hook & Rounded Slider

3 improvements towards the original OTF Fidget Knife model: Dual rail for handle & blade for better rigidity Beefier & stronger negative hook that is harder to break Rounded slider for easier to flick Oh, and i also removed the holes on the handle, and shortened the spring hook on the sliders. Used PETG & ABS and they all worked fine.