PLA (Polylactic Acid) Filament is one of the two most commonly used desktop 3D printing materials (with the other being ABS). It is the ‘default’ recommended material for many desktop 3D printers, and with good reason - PLA is useful in a broad range of printing applications, has the virtue of being both odorless and low-warp, and does not require a heated bed. PLA plastic is also one of the more eco-friendly 3D printer materials available; it is a bioplastic, which means it is made from renewable natural resources, such as corn starch and tapioca products. As a biodegradable material it is much better for the environment and requires less energy to process compared traditional (petroleum-based) plastics, especially compared to petrochemical-based alternatives (such as ABS). . Outside of 3D printing, PLA plastic is often used in food containers, such as candy wrappers and biodegradable medical implants, such as sutures. PLA filament for 3D Printing is available in a wide range of colors in both 1.75mm. Product Features • 1 KG (approximately 2.20 lbs) Spool • 1.75mm Filament Diameter (Dimensional Accuracy +/- 0.05mm) • PLA (Polylactic acid) 3D Printer Filament Vacuumed Sealed With Desiccant • Recommended Extrusion/Nozzle Temperature 190C - 230C, Use Without Heated Build Platform Is Recommended PLA (Polylactic acid) is thermoplastic aliphatic polyester made of renewable resources like corn or starch. Its extrusion-temperature is much lower than ABS, and most often doesn’t require a heated bed. It has the following Characteristics: • Good toughness high strength, high stiffness ; • No block nozzle, good stick hot bed, a smooth PLA used • Can be processed at 185 degrees • Low shrinkage, thermoforming dimensional stability Application: 1) suitable for all kinds of FDM 3D printer. Baseplate do not need heated. 2) Complex structure models. High Precious requirements models. 3) Hollow and large angle model,matched with PVA filaments.