【Pearlescent, gorgeous surface 】– Without polishing, you can get pearlescent & gorgeous printing surface. Unique based recipe assures less stringing and better overhang performance. | 【 100% non-knotted 】- Perfect filament winding that compatible with the most FDM/FFF 3D printers. You don’t need to bear printing failure after 8 hours printing or more due to tangle issue. | 【 No warping & Good Layer Bonding 】– Excellent first layer adhesion to reduce warpage, shrinkage, curl and print failure. Good layer bonding strength make the printing parts stronger. | 【 Purity material & Precision Diameter 】 – avoid print failure jam or clog and making you a smoothly printing & better surface. | 【 Technical support available 】 – Every buyer can get a pdf version instruction. We can support on how to use our material on your printer. Technical support available via E-mail: support@ysfilament