Gravity Knife Fidget Toy 7 cm – 3D Printed Snap-Action Flip, EDC Desk Gadget

The Gravity Knife Fidget Toy is a flip gadget built around one crisp snap-action motion. Hold it in your palm, give your wrist a flick, and the blade-shaped arm swings open on a smooth gravity-assisted arc — then snap it shut again. Repeat until satisfied. Designed as a print-in-place piece, it comes out of the printer already assembled and fully functional. No screws to lose, no glue required, no parts to click together. The interlocking joints flex just enough to give that slightly clicky, tactile texture that makes a fidget toy worth reaching for. Made from PLA and produced when you order — so each piece is freshly printed, not sitting in a warehouse. Lightweight and compact, it slips into a pocket or bag without adding bulk. Quiet enough for an office, a commute, or anywhere you want something to do with your hands that isn't your phone. Compact: about 7 cm long (2.76 in) — slips into any pocket.