PLA filament for 3D printing. Filament PLA is a thermoplastic polyester in the form of fiber, used for 3D printing using the FFF method. The filament is wound on a spool and vacuum packed with a moisture absorber. The spool contains 1 kg of net material. It can be used in all FFF printers that are not protected from external suppliers and open source structures before use. PLA is a biodegradable material produced from renewable natural resources. It is primarily dedicated to amateurs due to its trouble-free use.