This Polymaker PolyLite black ASA filament has a diameter of 1.75mm. ASA consists of a unique mix of high-quality PLA and PHA. This makes it stronger, harder and less brittle than standard PLA filament. ASA is known for its UV stability and high temperature resistance up to 96°C. It does not warp and adheres perfectly to the print bed. You can also print ASA a lot easier than, for example, ABS.The ideal printing temperature is 240°C to 260°C. For best results, use a heated bed of 75°C to 95°C.