This 3D-printed marvel isn’t just a cylinder — it’s a hands-on conversation starter. Featuring a spring-loaded rod and functional nut, it doubles as the ultimate fidget giveaway for engineers and makers alike. Along the side, a sleek aluminum business card snaps neatly into place — fully customizable and removable for a personal touch. And when you think it can’t get cooler, the base hides a 9V battery powering two working LEDs that light up as the rod is pressed, simulating real position sensors in action.
The cylinder can also be customized with laser engraving for brand specific information.
