This 10 pack of 500g PLA filament is easy-to-use, non-toxic, odorless and biodegradable. It’s the versatile choice that’s perfect for making a wide range of durable prints with your Robo 3D printers. Filament spool made to fit Robo C2, Robo R2, and Robo E3 spool holders and most other 3D printers. 10 pack of Robo filament includes: 2 Black 500g, 2 White 500g, 2 Red 500g, 2 Blue 500g, and 2 Green 500g spools. 10 pack of Robo filament expected to last up to 6 months with moderate use.