PLA+ Filament Advantages-- PLA+ 3D Printer Filament is improved and upgraded based on PLA filament,good adhesion performance ,high strength and better toughness.Clog/Bubble/Tangle/Warping/Stringing free, high durability, better layer adhesion.iBOSS filaments are made with virgin materials, no pollution, non-toxic and no odor during the printing. Dimensional Accuracy & Consistency-- iBOSS 3D Printer PLA Plus filament of 1.75mm diameter, Minimum tolerance and low warping to ensure consistent feeding and stable prints.Dimensional accuracy + / - 0.02 mm ; 1 kg spool (2.2lbs), which making filament that have an outstanding surface finish and are highly precise. Tangle Free & Bubble-Free & Clog-Free-- Our 3D Printing Filaments are easy-to-use.Total Length: 340-350m.Recommended Print Temperature:200-220.Melt well, feed smoothly and constantly without clogging the nozzle or extruder.Full mechanical winding and strict manual examination,to make sure the line tidy and no-tangl