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Welcome to the world of 3D Mars for endless opportunities of innovation and design in 3D printing!Please pay attention to these information before purchasing:*Type: Sample Transparent white Filaments*Package: Individual Vacuum Sealed *Gross meter :20 Meter / 65 Feet Each Color, without spool*Length of Filament Diameter:1.75mm,Dimensional Accuracy +/- 0.05mmQuick Guides for 3D printer buyers:PLA users sometimes have difficulties in jamming the hot-end, just add a drop of oil to hot-end, and then when you put a roll on,it will give you smooth, jam-free, jam-smelling prints till the cows come home.Getting the perfect extruder height is critical to great prints-- I prefer the z-level to be set so that there is a very faint impression left on blue painters tape when removing a PLA model.