The esun petg filaments are stronger than regular pla, having similar properties to that of abs without common print issues that come with it. It also has no wire-drawing problems meaning the surface of the printouts will be smoother and more delicate. A low material shrinkage rate gives a uniform diameter and no cracking or brittle issues. Consistently high quality. Made from great, high performance materials. Ready to print on any open source desktop or industrial printer. Deliver exceptional performance. Printing settings best printing temperature230-250. Bed temperature0-80. Printing speed3090mms. Movement speed90150mms.