1kg Spool of 3mm PLA 3D Printer Filament – 290 White This spool of 3mm white 3D printing filament is compatible with all 3D printers from Makerbot (such as the Replicator, Replicator 2 & Ultimaker printers). Its high strength & minimal warping make it ideal for home or office use. PLA (Polylactic Acid) is a multipurpose material commonly used in 3D printing. PLA is a bioplastic, meaning that is made from renewable sources like corn & tapioca products. When using this IMA00960 3D printer filament, the added flex means that you can be more creative with your models. This 290 white filament has an optimum extrusion temperature of 185 to 205 degrees Centigrade. This 3D printer filament is supplied in a sealed plastic bag, that plastic bag is then in a sealed cardboard box to be sure it isn't exposed to air. We recommend that you keep all unused filaments in an airtight container to make sure they're in the best condition possible.