NinjaFlex is a specially formulated thermoplastic elastomer (TPE), ideal for 3D printers with direct-drive extruders. All NinjaFlex filaments are made in and shipped from the U.S. International orders are stocked and shipped from the UK. NinjaFlex is patent pending technology. This helps in all kinds of best selling 3d printers and scanners. Here is a video at the Rapid Show in Detroit June, 2014.