[SUNLU 100% Wound Neatly Filament] SUNLU-owned tech has mastered advanced technology and produced 100% Neatly Wound PLA PLUS/PLA+ Filament, which is impossible for other brands. No knot, no winding, improve printing efficiency. [Good comprehensive mechanical properties] Particularly drop-resistant, impact strength up to 8KJ/m2, which is 2~3 times more than other PLA or PLA+ on the market, the color is brighter, and it has many advantages, Clog/Bubble/Tangle/Warping/Stringing free, easy to use, better layer adhesion. [1.75mm Diameter] Dimensional Accuracy +/- 0.02mm. SUNLU filament has wide compatibility due to the small diameter error, it's suitable for almost all 1.75mm FDM 3D printers. [Spool Diameter] Spool Diameter: 8.00", Spool Width: 2.50", Spool Hub Hole Diameter: 2.20". The size of the SUNLU filament spool is suitable for hanging on many 3D printers. [Recommend Settings] We recommend printing at a Nozzle/Extrusion temperature of 210°C - 235°C (410°F - 455°F) and Bed/Platform temperature of 55°C - 65°C (131°F - 149°F). [Strong Compatibility] SUNLU 3D Filament is not only applicable to all SUNLU 3D printing products: FDM 3D Printer, 3D Printer Accessories, and Filament Dyer, but also applicable to almost all FDM 3D printers of other brands.