Filamentive flex 175mm 3d printer filament 500g spools filamentive flex red filamentive flex is a very flexible red filament for 3d printingthe combination of flexibility mechanical strength and durability as well as good resistance to chemicals and extreme temperatures makes it a unique filament the high carbon content of renewable materials results in less environmental impact flex also exhibits excellent uv resistance filamentive 3d printing 500g spool of flex 175mm red