TPU Python Flex™ [Formfutura 1.75mm] 500gPython Flex is a high performance flexible thermoplastic polyurethane (TPU) filament, which is designed for high speed printing on both direct drive and Bowden style extruders. Python Flex is an extremely easy to print flexible filament which can be printed directly on a glass plate without having to use the heatbed. It has a shore hardness of 98A and has great elastic properties as allows itself to be stretched up to 450% before breaking. Unique