... model lighter, save money;(3) cost-effective, can be processed in wide range temperature;(4) softer than PLA;(5) diameter of 3.0/1.75mm ... black filament is too brittle, that added and mixed with some recycle and scrap after produced.We haven’t produced ... modification, packaging, quality control ,producing control, we can do according to your requirements . we have colors: Natural, white, black,red, ...