pla+ is a variation of pla that has added material in order to make the filament less brittle, have a smoother surface finish, and less likely to absorb moisture. typically, tpu is added into the filament in order to achieve this property. pla+ will have the feel and functionality of abs without the smell.? specifications: spool net weight : 1 kg diameter : 1.75 mm diameter tolerance : +/- 0.02 mm oval tolerance : + 0.01 mm print temperature : 210-230 ?c hot bed temp : 50-70?c features: tangle-free design - reduces the odds of failing prints, leave you stress-free when printing for long periods of time and ensuring the success of your 3d printer/3d pen. safe to use- pla+ filament made from natural renewable resource, 1.75mm pla plus filament is 100% biodegradable & non-toxic. no harm to user and environment. wide range of application - fila3d pla+ filament 1.75mm are considered as one of the most commonly used filaments for both beginners and experienced users. accuracy & consistancy ? our spool 1.75mm diameter pla+ filament has been made with strict production standards, so fila3d can assure that you that its size remains consistent all throughout. and solves the problem of printing interruption caused by the knotting of the filament. clog-free & bubble-free - complete drying for 24 hours before packaging and vacuum sealed with desiccants in nylon re bag, no bubble and easy to print. full mechanical winding and strict manual examination, which guarantee the pla filaments tidy and easy to be fed.