About this item: 
① 【Super Neat Filament Spool】This 3D printer filament product line is equipped with an excellent self-developed neat winding device, 100% neat rate, and no clogs, making filament easier to use. 
②【 3D Printer Filament】this filament is the most basic, the most used filament,with  no clogs, no bubbles, no tangle, this filament has good layer adhesion, very easy to use. 
③【1.75mm Filament Diameter】Dimensional Accuracy +/- 0.02mm. SUNLU filament has wide compatibility due to the small diameter error, making it suitable for almost all 1.75mm FDM 3D printers. 
④【Filament Spool Diameter】Spool Diameter: 8.00", Spool Width: 2.50", Spool Hub Hole Diameter: 2.20". The size of the  filament spool is suitable for hanging on a lot of FDM 3D printers. 
⑤【Recommend Settings】We recommend printing the filament at a nozzle temperature of 200-230°C, bed temperature of 50-65°C, and printing speed of 50-100mm/s.