PLA Material, 1.75mm Diameter, Biodegradable, Safe for Indoor Use, Compatible with Most 3D Printers. Bring your concepts to life with 1.75mm PolyLite PLA Filament from Polymaker. This PLA filament allows you to print various creations with ease making this material ideal for newcomers looking to learn more about 3D printing. This entry-level filament is derived from renewable resources and is biodegradable making this material environmentally friendly and safe to use indoors. Coming in a wide array of colors this material is usable in most 3D printers with a 1.75mm nozzle for optimal compatibility. Each spool comes in a durable resealable vacuum bag with a desiccant packet that protects the material from moisture and humidity.