[Incredible Strong] We use a new formula to improve its rigidity and print performance: 80% nylon coupled with 20% carbon fiber, which is ready to take on your next project. With no less than 20% Nylon based carbon fiber SainSmart CF20 is Easy to print, with great surface finish and strength to take on some of your most demanding jobs. [Lower Shrink Rate] It features with lower shrink rate, higher strength, and rigidity, less warpage and more resistant to wear and tear compared to the traditional nylon filament. [Smooth Printing] Produce high-quality parts that are easy to process and look great; all while delivering functionality, stiffness, dimensional stability and heat resistance in an easy to print material. [Application] It is suitable for those looking to make both strong and flexible industrial parts, prosthetic, medical equipment, and complex costumes, etc. Optimal print temperatures of 260 - 290°C(500-554°F) with a build surface temperature of 45-80°C make it a great c